U64: XXX demo by Lethargy twister part very Jumpy VIC problem

[TomCat666]

In XXX demo by Lethargy the last effect on disk 1 (4x4 twister) is VERY jumpy, should be stable, but the screen is jumping up and down all the time.

Demo: https://csdb.dk/release/?id=207188

Picture:

U64Elite 1.41 - 3.10c