Yes if piano roll is open and I am in piano roll view everything works ok. Sluggish compared to before. When you move cursor or press play or stop its a half sec delay. Was instant before patch. if you close piano roll view everything works great. Its when open piano roll view and then click on track view for instance but piano roll is still open on another monitor but not the current selected window. Thats when everything goes crazy. When you click play you cant stop it. U can click on other windows. click stop click anything but nothing works for about 10 secs to 14 seconds. (counting myself).
I have very good computer. I have three 4k 50 inch monitors and windows on every screen. I have 5 running instances of amplitube 5 and 7 other effects running on various tracks I have 5 keyboard tracks and 1 superior drummer track so lots of midi stuff. Vocals and 6 different layered guitar tracks going with amplitube running different preset on each one. Never had any issues before. Until this patch. I keep piano roll open a lot cause im constantly going back and forth between windows.
I at least discovered it was the piano roll window. For now Im closing the window each time i leave it but I dont want to have to continue doing that since I know it can function fine with it on before patch. I did click on the GPU acceleration button and turned it off and restarted but had no effect on sonar. Still acting the same.
Also just for more info. If I forget to close piano roll window and click play in track view and let it play for like 20 seconds or more without clicking stop then it takes sometimes 4 or 5 min to get cakewalk to stop playing. most of the time Im clicking play to listen to a section and not whole song. And you can kinda get it to stop after about 10 to 14 secs. but if you play like anywhere close to half a min it wont stop for anything. I click everything and it plays endlessly past the whole song for mins until it stops. craziness