White (freeze) on brave browser start (only iPhone)

Every time I start the browser it stucks on a white screen on iPhone.
I have to close the browser and reopen ist. Then a message appears that it lost its tabs and I can rebuild them. I get my tabs back.

But I always have to reopen it to get the browser running.

Thanks for reporting @Leeloo, this is a known issue and a fix is on the way.