Strange phasing sync with octa

Hello guys
I setup my octa T5 to record incoming audio from my rytm . I noticed that the octa won’t stay in time. I recorded a simple 4 on the floor kick and once the sampled kick start is not perfectly synced with rytm kick, and the more I wait the more the octa go out of sync.
The recording is quantized for 16 step.
After a minute the octa has big delay , so I ear the kick going twice (first rhythm then octa).
I hope someone can understand what I’m trying to explain and has some ideas, not sure if its a latency issue, but I don’t understand why the out of sync get worst and worst since I trigger the sample every 16 step…



Clocks synced or just set at the same tempo?