Unreal Engine 5.6 Released

Has anyone encountered this issue? After upgrading my project from 5.3.2 to 5.6, I keep getting the following error on startup, which causes the editor to crash:

“Assertion failed: !Object->HasAnyFlags(RF_NeedLoad | RF_NeedInitialization) [File: D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading2.cpp] [Line: 10517]”

It seems to be triggered by all Sequencer-related blueprints.