@Falcounet I think that your solution works - I can't register exception handling but I don't experience so many stucks. Did you improve something more? 😉 I will let you know if I am sure. But...
Function again gets stuck for ~3 min and I closed it. Problem appear in connect function this time.
DSF 3.4.6 and dsf-python-3.4.6.post4
Error:
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