Kadence Blocks having compatibility issues with Plugin Twentig

Please check this out; there is a conflict between:
+ Kadence V2.0.9/0.10 and
+ Twentig Plugin
(no other plugins – fresh WP 5.7.2 install + TwentyTwenty One)

Result:
– Open a new page or post
– Issue #1: Kadence-Button “Design Library” in editor-bar is gone
– Issue #2: add new block button on the top left corner of the editor -> only Spacer/Divider in group of Kadence Blocks is showing up!

– Or open a page with already built in Kadence Blocks.
-> The Block-Editor will give a warning, not finding/loading them

I would be very grateful for these two extensions to get along again.
I am a lecturer, and since I teach WP 5.x I always use “Kadence Blocks” for complex layouts and better blocks, (also in our book materials), but before that “Twentig” is used for simplified and improved design options of the blocks.