Problems with Playback trigs while in EXT mode

Hi Elektronauts.

My issue is strange.

Essentially what is happening is this: I set up a FLEX track on T5. I assign Recording Buffer 5 to this track. Then, I put down a recording trig on track 5’s recording machine, set to 64 beats.

Ideally, both the recorder trig and the playback trig would simply both play for 64 beats, allowing for real-time audio manipulation, etc. I could then put down more playback trigs to mess with them, etc.

Lately however, the playback arrow goes for a few milliseconds and then stops. The recorder trig keeps going normally.

Also, this only happens sporadically… usually in EXT mode with the OT slaved to Ableton. Am i missing something? Is this a latency issue?