Quote:
I have edited over a dozen videos without this problem. Now, after editing a video, closing it and shutting down the computer and coming back to it in a day or two, PD12 will allow me to only use the split function. None of the other editing functions are shown (Fix/Enhance, Power Tools, etc.) .
Your problem already much discussed in this forum, is PD12 error, install the latest update, PD12 v. 3403.
If not solve, clicks right in the video and select, Unlik Video and Audio.
Another option, add the same video about what's in the timeline.
AMD-FX 8350 / 8GB DDR3
SSD SUV400S37240G / 2-HD WD 1TB
AMD Radeon R9 270 / AOC M2470SWD
Windows 7-64 / PD16 Ultimate