Loosing block classes information after update

After updating to version 2.0.5 the added classes of blocks were gone.

Our system: Drupal 10.5.0
PHP 8.3
Maria DB 10.5.29
Memcached
On site used similar modules: Block Class & Block attributes

After reverting to version 2.0.4 the block classes are back.

Possible conflict with the Block class module.