The error message appears when your graphics card isn’t powerful enough to render the effect, which is why you’re only seeing it on some FxPlugs and not others.
Yes absolutely, if the original clip was selected before Ctrl-Ving but there’s no need to select the clip in the first place. With no clip selected, Ctrl-V uses the auto select buttons to work out which clip(s) to add edits to.
Yes absolutely, if the original clip was selected before Ctrl-Ving but there’s no need to select the clip in the first place. With no clip selected, Ctrl-V uses the auto select buttons to work out which clip(s) to add edits to.
Not necessarily. You don’t have to create freeze frames from the sequence side, in fact I always advise to avoid it. Instead match frame to the source clip, then create a freeze from that and edit it into the sequence.
I agree that it would make sense for freeze frames to be the source clip with speed set to 0% rather than created as a separate file.