I was having issues with PD13 crashing any time I tried to load a clip onto the timeline, with OpenCL and hardware decoding enabled. With no OpenCL but hardware decoding still on, I was able to actually do some editing, but PD13 still crashed intermittently - totally crashed, no error reporter or anything. With both options off everything was crash free, but somewhat slower that I liked.
After an exchange with support that was less than satisfactory (they told me to try everything I told them I had already tried), and after trying nearly everything, from an OS wipe to replacing the PSU, I was stumped.
I had actually completely given up on PD13 actually working well for me and went back to my older version of Vegas, when something struck me - I am running 2 R9 290s in crossfire, which realistically is an incredibly buggy driver hack. So, I went into AMD's catalyst panel and unchecked crossfire.
Bang presto, everything in PD13 works, and works great. I even see usage on BOTH GPUs now, which I actually wasn't expecting since there really isn't much information on PD13s support of multi-GPGPU.
Anyway, in case anyone else with crosfire is having issues, I hope this helps.
Side note, again for AMD users, the Gaming Evolved app still can break the Capture tab in PD13. If Webcam capture crashes PD on you, kill Gaming Evolved and you should be golden. Nanoxia Deep Silence 1 case | Ultra X4 850W PSU | Asrock Fatal1ty Killer 990FX | AMD FX8320@4.7gHz | Coolermaster Nepton 240m | 2x HIS R9 290 GPUs | 24gb G.Skill Ripjaws 1600mHz DDR3 | OCZ ARC 100 480gb SSD | Various WD Black and Seagate drives to the tune of ~20tb | I have been building systems for over 16 years, however my opinions can be and sometimes are incorrect. Please, call me out if I say something asinine.