PJH
I've been using a MOTU 16A with Sonar Plat for the past 10 months and haven't had an issue like this... touch wood.
I'm also running the latest Platinum update.
Your kind of problem would drive me mad.

yeah, on the verge of madness here.
 
eventually we'll get to the heart of the matter and solve it. MOTU support is really helpful, trying hard ... the hardware itself is incredible, I just feel I bought it a year too early and that's the punishment for being an early adopter ...

Hi Guys,
I got my RME Babyface Pro setup with Sonar Platinum on my Asus G752VY laptop... my glitchy recording problem seems to be gone.  With the MOTU 828x connected with Thunderbolt, the lowest round-trip latency I could get at a 256 sample buffer was about 19ms... the RME at the same buffer size is 12ms.  I can run most sessions with the RME at a 64 sample buffer size with a round-trip latency of 4ms no problems.  On big sessions with lots of plugins, I have to run at 128 sample buffer size to be on the safe side.  I still need to spend more time with it, but so far there have been none of the problems i was having with the MOTU.  The RME TotalMix FX software is way more versatile than MOTU's CueMix software as well.  Looks like I will be selling my MOTU 828x... that was a frustrating 6 months of testing things... at least i learned a fair bit ;-)
Mark.

Knock on wood - it looks like things are improving here. Lengthy multi-track session with same I/O setup that had this track corruption / crackling recording issues but no problems spotted when QCing takes in the recent edit session.
 
I still got the MOTU beta driver in use (which was definitely an improvement in terms of playback stability with regards to webUI), but also win10 and Sonar patched to latest state (Dec 23, 2016).
 
Reported fixes in Sonar 2016.12 don't indicate anything that could have made a big difference, but I believe win10 may have a fair share in that problem situation (as it got worse when others started reporting other weird issues and now it seems better again ... but not being a win10 techie, I can only suspect).
 
 
 

Good news Rob! Fingers crossed:)

Hi Rob, just checking to see how your MOTU unit has been behaving with Sonar lately... I hope it's all working out.
Mark.

Hi Mark,
 
The MOTU units are behaving fine recently ... stability is spot on and I actually just went back and doubled checked my mini-dumps directory to find only 3 dumps in there since moving to MOTU back in August ... I do remember all 3 of them (which means that there really were no more than that) and all were caused by "ignorant user practise" (1x A-PRO controller overload after hitting too many buttons furiously when not nailing the take for 100th time, 1x opening a CWP moved to a different place, not bothering to allow Sonar to create the missing audio directory and 1x when deleting a Kontakt instance out of archived tracks).
 
Audio glitching is also a lot better (as described in my post above after the last series of updates from Dec 23, 2016). Knock on wood it stays like this. I rarely get a glitch/drop-out when working under load. Much of this is probably due to the improved driver (less interference with webUI) but I suspect also win10 had a fair share in that problematic situation (although no company officially comments on that really)
 
Recording also works fine - but I did have one odd situation where a simple piano scratch recording (only one stereo audio track plus MIDI) was completely broken i.e. the audio files could not be played back, hitting record again resulted in the same garbled mess (i.e. "digital noise") but restarting Sonar without any other changes immediately fixed it. So I believe this was a Sonar issue - although I have no idea how that happened as direct monitoring provided a crystal clear sound of a mediocre piano take and the recording itself was broken.  Back then I did not feel to break the creative flow for the sake of debugging, if this ever happens again I will ...
 
I will definitely hold on to my MOTU units as the AVB concept with its scalability, routing, recall various studio setups, etc options is just what I was looking for. Quality of the recorded takes in terms of super low noise floor is scary at times when you start to think how to edit/hide some real world problems (e.g. drum stool squealing)
 
 
 
 

Thanks for the update Rob, I hope this becomes available soon to the rest of us.
 
It seems like you said you were getting more glitches with the Web UI open while using Sonar. Was that you? If so is that part better too? Thanks for being a determined pest towards MOTU, we all appreciate it. I never had any luck with them on this issue.

gmp
It seems like you said you were getting more glitches with the Web UI open while using Sonar. Was that you?

yeah. that was me ... and that has been fixed by the beta driver ...

Hey Rob,

We're not on the beta driver any more (?)
Did you have problems with the one from Nov. 1?
http://www.motu.com/avb/index.html

You are not alone regarding the glitches during playback....I stopped updating SONAR since 2016.10 - glitches started from 2016.11. Didn't improved in 2016.12, so I also rolled back to 2016.10 after trying that (I need to finish a project very soon). This was when WASAPI support was introduced btw...
I haven't experienced any corrupted projects though.