Marcel Taeumel uploaded a new version of Morphic to project The Trunk:
http://source.squeak.org/trunk/Morphic-mt.1696.mcz

==================== Summary ====================

Name: Morphic-mt.1696
Author: mt
Time: 8 October 2020, 4:57:26.632753 pm
UUID: 224174d5-5e2f-ac4c-a356-8223edc18ebc
Ancestors: Morphic-mt.1695

Complements System-mt.1176.

=============== Diff against Morphic-mt.1695 ===============

Item was changed:
  ----- Method: MorphicProject>>makeThumbnail (in category 'menu messages') -----
  makeThumbnail
  	"Make a thumbnail image of this project from the Display."
  	world displayWorldSafely. "clean pending damage"
+ 	super makeThumbnail.
+ 	(Smalltalk at: #InternalThreadNavigationMorph) ifNotNil: [:tnMorph |
+ 		tnMorph cacheThumbnailFor: self].
+ 	^ thumbnail!
- 	^super makeThumbnail.!