Hi,
I've started editing a new (2.5yr old) project in PD12 and during the editing phase it's freezing the program completely, requiring the program to be shut down. Over a period of a few hours, it froze about half a dozen times. Fortunately I was using PDToots recommended project management approach, regularly saving of PDS files so lost little each time. I had come from PD11 and never experienced any issues, though hadn't worked on a project with so many short clips. Very few will have any effects added. I still have PD11 installed (whether it matters).

My total project is about 13gb of AVI video and still images. Video is 720x576 at 25fps, interlaced and 4:3 ratio, shot on old DV camcorder. My other projects have been with a gopro or sony digital camera in PD11. The freezing occurs while I'm editing in the timeline phase, so splitting, trimming, audio and basic colour correction, some titles, etc. The only common trigger is if I'm editing things quickly, add an undo or something of that nature, it freezes. I haven't got to producing the video and I'm about 35mins through content.

I'm running PD Ultimate, version 12.0.2209.0, SR number VDE130910-01. I believe I have all the latest updates, I checked after it froze a few times and made any available updates, but still got the freezing.

DxDiag attached, please let me know if you need more info.

Thanks
Sean