Problems with MOTU Ultralite AVB on Mac

[eddhy]

Hey Isadora community,

I'm new with using Isadora & currently working on my first project: I want to control parameters in Isadora with Control Voltages coming from a Eurorack Modular Synthesizer System via a DC-Coupled Audio-Interface.

I habe already got some results, but figured out crashes, that led me to a general question:

Is it normal that everytime I pull off the usb cable (to the soundcard), Isadora simply closes without any warnings, questions or report on the next startup?
(I'm guessing a major problem in my system, that is also responsible for the "smaller" crashes...)

Working on:
- MBP, mid 2014, high sierra 10.13.6

- Motu Ultralite AVB, Firmware 1.3.4+617 (newest), USB

Some ideas?
Thx in advance!

Lukas