After the update to Photoshop CC 2020 (now 21.1.2), there are problems with working on the Wacom tablet: elements (especially smart objects and layers grouped in group folders) jump back and forth when moving and cannot be placed precisely.
This happens on several computers with different tablets.
This does not happen with other programs (inkluding Photoshop 2019, Adobe Illustrator CC 2020, Indesign CC 2020, Open Office, operating system and including Photoshop 2019).
I had called the Adobe support before and was finally referred to Wacom. After writing extensively with Wacom Support and performing various tests without success, I was referred back to Adobe (because the problem is only in Photoshop) and write with the Adobe support again – but without result. Now they send me to the forum.