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Is it a bug ??

I selected some frames in one layer.
Andi in playback it played all frames of the layer/clip. This happened in loop mode on and also in loop off.

(Of course MarkIn/MarkOut are checked off.)

Same happens here.
Good catch.

I noticed the same thing. Had not had the time to send in a report yet. That should be fixed back to the way it was before so a group of frames can be selected and only those frames played back.

OK, bug confirmed.