When I paste a clip into the end of a timeline the current-time indicator automatically moves to the end of the clip / then end of the timeline.
Clicking the spacebar then moves the current-time indicator to the beginning of the timeline and starts playing. This occurs whether Looping in the Project Monitor is ON or OFF.
If I position the current-time indicator near or at the end of the last clip in a sequence and click the spacebar, the current-time indicator will stop at the end of the sequence if Looping is turned OFF.
So pasting a clip to the end of a sequence somehow temporarily ignores the Looping switch.
Tim