Kamikaze
What's the other Pro Channel module you have?
 
 

I checked now and I could only test the EQ and could not find any other Pro Channel modules. 
Problem still persists. 
Thank you for confirming the problem also exists on other Pro Channel modules. 
Are you also using Logitech wireless input devices?
 
(PS..I dont have trouble adjusting the bundled Softube plugins, only the Pro Channel)

I have 4 mice, 2 wired, 2 wireless, and symptoms seem consistent amongst them all.  One of the wireless is a logitech.
 
Can you confirm these are the same for you system.
 
 
 

https://scontent.xx.fbcdn...e1132b&oe=5571B316
 

Kamikaze I can confirm the problem also affects my master and other faders. 
 

If you go to any VSTs, I'm guessing they are problem free? It's just things that add those 4 white corners when you select them that act erratically?

Kamikaze
If you go to any VSTs, I'm guessing they are problem free? It's just things that add those 4 white corners when you select them that act erratically?

Thats correct, other VST's I have tested are problem free. 

Splat
Nobody has specifically reproduced the issue and no posts for 3 weeks now.
So throwing into Sonar forums to see if anybody else has it.
 
Note a workaround has been posted by the OP.

So I can reproduce and we both share related symptoms that go even further than or originally reported and are easily definable. What happens now, does it get moved back or do we have to contact Cake?

Kamikaze

Splat
Nobody has specifically reproduced the issue and no posts for 3 weeks now.
So throwing into Sonar forums to see if anybody else has it.
 
Note a workaround has been posted by the OP.

So I can reproduce and we both share related symptoms that go even further than or originally reported and are easily definable. What happens now, does it get moved back or do we have to contact Cake?

Thats a good idea. This bug is quite severe imo and currently I am not even using my Pro Channel modules anymore. 
About three months ago I submitted a bug report but since have gotten no reply. Please consider also submitting a bug report indicating it also affects  faders and not only Pro Channel modules. Also that the bug is reproducible across many input devices (wired and wireless mouses). Maybe with more bug reports on this something will happen.

I've reported this. Did you get a CWBRN number from them. Can you put it in the title if you did.

OK FM, can you see if this works for you, you may be happy with it, t works for me but I am not happy about the consequences.
 
Had a reply from Cake advising to look at this page.
https://www.cakewalk.com/Support/Knowledge-Base/2007013377/Faders-and-Knobs-Do-Not-Move-Smoothly
 
Now whilst this works, it makes everything tiny. It says
 
"If the sizing options are set to anything above “Smaller” or 100%, they will cause these abnormal graphical behaviors in Cakewalk software"
 
At standard I get problems, at smaller it works, but leaves everything tiny. It then recommends reducing the monitor resolution.But I bought a full HD Laptop Screen on Cakewalks recommendation.
http://www.cakewalk.com/Support/Knowledge-Base/2007013383/SONAR-Platinum-Professional-Artist-System-Requirements
"Monitor Resolution: 1280x800 (1920 x 1080 recommended)"
 
I've asked for more details on why this affects only one set of controllers and not the other (White corner selected vs. no marker selected) and why Prochannel is the exception in that you can right click select and left click hold and move.
 
 
 

Thanks for putting up the knowledge base article, did not know it existed. The screen resolution/mouse problem is not new which is why I posted the question in msg #8.