RestAPI: Changing priority of a Task unclaims it

Using engine-rest on version 7.10 to change the priority of a task unclaims it.

I hope I am in the right spot here to ask the question and it hasn’t been answered somewhere else already, I did serach.

Anyone any ideas how to solve the issue or circumvent it?

Best Regards Rick Schirmer

Thats quite and old version of the engine. Do you know if you can replicate it on the newest version?

Probably not, I wish, the version I am using is shipped with our ERP System and more or less tightly connected to it and running in a container.

I guess I just thought of a workaround, I can just save the assignee and just reassign it afterwards.