6.12.0-rc2 - Starting Array creates PANIC Error

Hello everyone

posting first time in the English Section, so please bear with me. 😅

I upgraded to 6.12.0-rc2 a couple of weeks ago and created an ZFS pool for my appdata an domains share. Everything worked until last week when the server crashed. I tried to reboot the machine, but ever since, when I start the Array after the reboot, i get the following error (screen connected via HDMI):

ZEUS login: VERIFY3(size <= rt->rt_space) failed (281442915282944 <= 7946706944)
PANIC at range_tree.c:436:range_tree_remove_impl()    

The GUI will then load indefinitely, until i turn the server off with the Power Swtich. Starting the Array in the Maintenance Mode does not create the error.

Someone in the german section of the forum pointed me to the following github site, but there are a lot of informations I don't really understand:

https://github.com/openzfs/zfs/issues/11893

Does anybody have an idea how to fix this issue? 

zeus-diagnostics-20230423-1431.zip