Hi, ThomasMonroe.
Thanks for signaling this problem.
Yes, you are right, the actual Windows version of Blackvoxel(2.20) was working well when we released it (We are doing tests before releases).
We found the cause of the problem, it appeared with a Windows update.
Fortunately, we were working on it since a few days. The fix is now ready and we'll push all the new files in few minutes. This v2.30 come along with some other bug fixes.
In fact, this bug was not related to Blackvoxel code. The Windows update brings a change in a function which triggered a problem in the underlying SDL library.
https://discourse.libsdl.org/t/win10-fall-creators-update-breaks-mouse-warping/23526/2Strangely, only the latest versions of the SDL library are affected. So we reverted back to an unafected version of the SDL as a temporary fix.
The Blackvoxel Team