The first time running after .09 update and it crashed instantly. Second time running it opened with a setup screen and ran fine.

The hotfix for this crash has been posted. It has a couple of other updates as well. The next time you launch CbB you will get an update notification.
 
Build 24.09.0.29 hotfix:
Intermittent crash on startup with 2018.09.0.25 release build
Timing tool does not work
Help > What's New command
What's New link in Update Available toast notification

Thanks for the speedy fix Noel & Bandlabers!

jlhawk
It's also causing problems with Melodyne. If I create a region FX since yesterday's update all I get in the Melodyne editor is a flat line ... this worked fine until the update, and it works fine in Splat... I've had issues with this product now since August. is there an easy way to go back to the July release?

That's a bug I've reported to Celemony yesterday. 'Default Algorithm' selection is being ignored when I use Melodyne as a regional effect. Ulf agreed but said a fix will 'take a while'.

Hi, Noel. Thanks for the fixes.
 

Noel Borthwick [Cakewalk]
Help > What's New command

 
It gets wrong URL in Japanese mode. (Jump to support page.)
and also old [Check for Update] is still there. (Browser will be up.)
 

Thanks for the very quick response Noel.  I had a crash and then other family issues came up, so just got back to Cakewalk.  I installed the hotfix and everything is back to normal.
 
Your team rocks. 

I had a similar problem yesterday morning (Thursday) the first time I launched CbB for the day.  It was an error but came from Cakewalk and asked me if I wanted to send a report.  I opted not to but retired launching and had no problem the second time.  I did the update this morning. All appears to me OK.
 
John B.

 
What's funny is that I opened the same projects in my old Splat version and Melodyne worked just fine. I guess I'll be using Splat for awhile as long as it works there...  Looks like it's Melodyne's issue Noel, thanks for responding. I honestly had no issue however until this last CbB update... this whole software update/incompatibility issue makes my head spin anymore... 

Skyline_UK
 
That's a bug I've reported to Celemony yesterday. 'Default Algorithm' selection is being ignored when I use Melodyne as a regional effect. Ulf agreed but said a fix will 'take a while'.

 

Melodyne 4.2 is not working correctly for me either as it is out of sync and sometimes does not do the melodic procedure automatically when opening for my voice (one pitch to track). I sent Celemony a little video of the blobs not being in sync with the sound and they said I should totally uninstall both Sonar and Melodyne and reinstall them. Before going thru this lengthy process, I noticed the first update from Bandlab came 2? days ago and I installed it, and all of a sudden, Melodyne 4.2 worked. But a day later it is back to being out of sync. Today I installed apparently the BandLab "fix" to this problem but it still persists. Fortunately, Melodyne 4.1 still works perfectly so I'm sticking with it for now. This is the first real problem I've had in several years with both Sonar and Melodyne. Hopefully, they get it working soon but I don't really see many advantages of 4.2 for Sonar. The Melodyne update seems to be aimed at other DAWS. 
 
PS I think I've gone back and forth with 4.1 and 4.2 a dozen time in the last 2 days and, other than the first time I tried it with the most recent Sonar update, 4.2 has been out of sync.

FCCfirstclass
Thanks for the very quick response Noel.  I had a crash and then other family issues came up, so just got back to Cakewalk.  I installed the hotfix and everything is back to normal.
 
Your team rocks. 

Big thanks to the team on this quick turn!!!  You guys Rock!!!