SimCard on second Boot not detected

[OhneZ]

Hello,
I wanted to try the OS and I am positively surprised how well it runs.
Unfortunately, my sim card was only recognized on the 1st boot.
Mobile data, SMS and calls went smoothly.
On the 2nd reboot, the sim card was no longer recognized.
However, it still works. Tested in another smartphone.
How to get the problem solved ?
My version is 4.0.1.48.

Thanks for your suggestions.

Greetings
Steffen