I think Sonar X3 has some annoying copy and paste bug.

The only reason I love using Sonar is that it is not only intuitive but convenient, especially when handling notes in the staff window. So, copy and paste is the most used work as of me. However, [<font]paste does not work without several tries in the staff window, or nothing happens.  Of course, I tried every option including copy special, paste special.
 
In this video example, I made just a single track and it was in focus as well while editing notes. 
 
 
Actually, Sonar 7 and Sonar 8.5 do not have such issues. Cakewalk has released patch 'e' for Sonar X3 so far, but it didn't fix the bug. 

 
-----------------To Work Around This Problem---------------------
There are two solutions.
1. 'Spilt instrument track'
2. Check 'MIDI Source', 'Synth Track Folder, and 'First Synth Audio Output' in the 'Insert Soft Synth Options dialogbox'. You can open this dialogbox by pressing 'B' and clicking 'the insert synth options icon'.
 
 
 
Conclusion:
Originally, the synth track consists of two parts, an audio track and a midi track for the VSTi. And on the midi track, we draw notes. By the way, the simple instrument track has only one track, which means it contains both parts implicitly. So, the simple instrument track does not seem to recognize the midi track properly that does not exist definitely, it ends up with not knowing where to paste. Since the simple instrument track is combining two tracks, it should have processed the paste work accordingly.
 
The funny thing is that I can do every other job in the track, like drawing, cutting, and so on. Only paste does not work correctly. It is not a matter of checking if the current track is in focus. This is totally the track's bug. I also found this problem has appeared since Sonar 8.
 
 
 
 
 
 

Welcome to the forum BC399. As Mike points out there will not be any further development for X3. I would recommend that you upgrade the new version.  

I have always thought that it was just intuitive
to change "select" cues in all views in realtime,
as you move about a program.
 
(i.e.  if I change tracks in PRV, that's the track that should be in focus
when I return to the TV, SV or CV)
 
DAW follows ME, not the other way around.
 
Sonar is the only program I've used that doesn't
behave in this manner.
Odd.
 
Mel

I agree the copying and paste function in X3e is frustrating.  I CLEARLY have a track highlighted and the software winds up pasting somewhere else.  It may be the most annoying thing of X3.  ...but I live with it.

I am having the same problem with copy/ paste not working.
VERY BUGGY!!!
 

I have Copy/Paste issue in X1 all the time.

The problem still exists in Platinum, so don't bother upgrading for this reason! 

You know, this has been a problem for YEARS now.  At first, I thought that it was my destination track wasn't in focus when I pasted and appeared to get nothing.  After many months, I realized that this paste that appeared to do nothing was actually pasting the midi notes in the origin track at the same point it was copied from.  Hence, the double MIDI note problem that you don't see until later and by then, you forgot all about the paste that did nothing.
 
At this point, if I paste and see nothing were I thought it should be pasted, I know that SONAR pasted it somewhere unintended by me and I instantly hit CNTL Z to avoid the double midi note issue.  This is working because I can't remember the last time I stumbled across double midi notes in any of my tracks.
 
Now, sometimes, after I hit the CNTL Z, i see in track view that I did not have the destination track in focus (my bad) but more than most, even with the correct destination track in FOCUS, the paste appears to be non-existent.  I am convinced that either these is a bug buried in SONAR or that the bakers need to make it more clear where the paste is happening.  I wouldn't mind a dialog box to pop up to let me either confirm the paste to the published destination track or allow me to change the destination track measure and beat as well. The only thing I know of that fixes this paste issue is to QUIT SONAR and restart it (what a PITA).
 
I know we all have been griping about this issue and I don't remember the bakers even addressing this in any of the forum threads where this has been brought up.  I could be wrong and would gladly retract and read any threads that can shed more light and this issue.
 
 

Hard to do. I used to look forward to buying and updating Cakewalk almost every year since I bought Cakewalk DOS back in the late 80's. It first started out with midi, that I synched with a audio striped track on my multitrack tape deck for the audio. Cakewalk worked great through me making a dedicated DAW for it. When the Sonar series came out after a few versions, I started getting simple midi copy, paste and repetition errors. After a few perfect repetitions the timing would change, instead of .030, .060, .000. I'd get for example .345, .866, 993. I sent the problem to Cakewalk, and the next version it was fixed, then the next version it came back again, I sent a email to Cakewalk, they said they would look into it. A few months ago, I had to use a older version and imported my midi track, then copy, paste, and multiply the repetitions and then exported that into my latest version Sonar Platinum. I bought a whole lot of video and audio software programs, and if something was not fixed I don't ever remember being asked to pay and it may get fixed. If you buy something and all the features do not work, you are able to return it, or get a free update since it never worked properly. Now I'm sitting asking myself do I pay $249 and hope they fix a problem which is over 6-10 years old? Will it repeat itself, work with the next version, and then not with the next? I can't do it. I'll give them $249 and I only have 12 months for to fix it with no guarantees. Updates should be free for something that was working, stopped working or never worked. Well everything else works pretty good. People should be not charged for something that stopped working or never worked like it was intended. I've used different AMD CPU's and motherboards, and recently went back to a INTEL processor and motherboard and still have the same problems, not to mention Win XP to Win 10. I love Cakewalk but I don't think the people who work there now are the original or software programmers but only come up with new ideas. After 30 years, I think I spent my last dime on Cakewalk, I'm sad but unless I can get a free trial update and everything finally works right again I will keep working with my last version until I need or want to look for a new software for my DAW. It's been a great 30 years. Maybe it's time to move on when a company cannot fix midi problems that once worked?           

I hear you Chuck, but who else sells professional software with only a 12 month warranty and then no free updates to the bugs? If you had something wrong with your Mopar, and you submitted the problem before the warranty expired they would have to fix that problem. I submitted the midi problem way before the warranty was expired like maybe the first month or week after the version was updated or patched, before they had this one year limitations, and it never was fixed. It wasn't like it was intermittent, it never worked right, it was only one problem they never fixed. I agree with what you said about X1-X3, I met the Cakewalk guys down at Manny's one year and knew their names then. I understand 100% what you said about your Charger, I was a Richard Petty and Mopar fan. But did you bring your car back from the shop and what you complained about never worked while it was under warranty? That's the difference, while I was under warranty it NEVER was fixed. On the updates, or patches it never was fixed except once and the next patch screwed it up again. Look Sonar is great but I haven't used their plug-ins in years. I buy at least $2000 worth of plug-ins a year from everyone else, audio, midi and effects. I haven't seen a feature on Platinum since I retired in 2009 that I use. I use Sonar as my interface between my Presonus 32.4.2 mixer, and 32 channels of audio from my Motu 24AO and 8 channels from my Behringher AD8200. I do not use any effects with Sonar components, I just use it to record and playback and the audio tracks, and use some audio plug-ins outputs, from midi inputs. One time I used the Sonar compressors, and other effects, now zero. Not worth $250 to just use the midi correctly that never was fixed while I was under warranty. I remember paying $99, $149 for updates, but they had some kind of unique plug-in or something. I haven't seen any new feature I could use or has a wow factor. I see they finally have MP3, but that only because as ASCAP informed me the developers or company that does MP3's shut down because the competition had better encoders and the couldn't keep up. I even bought a portable Hi-def player to play FLAC and other HD audio files. I found out that unless the audio was recorded at 192k the MP3 files don't sound to me any better the oversized FLAC files. Thanks for taking the time to respond. Again I understand warranties, but Cakewalk never respected that I had this problem for years while I was under warranty.