Since the new FsLabs build I encounter the same problem as described, I run the live update but nothing changed. It only happens on airplane integration and not manually. I will enable the logging and post a detailed log after the next segment.
Thank you for your support
[EDIT] I now completed a flight form EDDH to EDDL with FSLabs A319 IAE Variant. Everything works fine until arriving at the gate in EDDL when the ACFT tries to automatically engage deboarding sequence and couatl crashes as mentioned above. I reloaded the couatl engine and was able to deboard the plane manually. It has something to do with the automation of FSLabs acft. I attached the enhanced log file form yesterdays session.