Just an idea,

When I know I'm going to be doing a static 'shift' type simulation session, to prep for the sim, I generally first pick my GFX card or CPU with that checkbox in the Simulate tab, then... I do a very quick 'start static simulation' then stop it immediately (same button again). Then I do the shift simulating and dragging, etc. as normal. At one point this let me work around a problem of some sort (long ago).

or, Maybe try the same shift-sim session with the CPU instead of the GPU or the other way around.

or, If it's still broken, see if a simple plane or sphere does the same thing... and if not, let us know what the cloth/hair item is and maybe we can duplicate the issue if it is mesh-specific.

I hope this helps a bit.

VWD3D/dan

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Current VWD Version:   Release: V2.2.924.6464 - 2019/12/12, 9:46am
Qualifier: Yes, I'm helping Gérald with VWD, Nooo, I'm not yet an expert on its use!