One at a time:
1. Copy your preferences somewhere safe, and launch PPro while holding Alt/Cmd, and try "Reset app preferences"; any change in launch behavior? Also, what do you mean by "does not function as expected"?
2. Are you saying that 100% of all sequence playback fails? Or is the failure specific to a given sequence and/or media?
3. Could you provide more specifics, about how PPro does not allow you to complete those tasks? What steps do you follow, to reliably encounter this problem?
4. Tha
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