[Seizure Warning] Follow Your Rainbow flashing textures in the scrolling section in software mode

level pack: https://mb.srb2.org/addons/angel-island-tour.3131/

does not happen in 2.2.13 or opengl mode

changed milestone to %2.2.14

added Bug Regression Rendering Software renderer labels

mentioned in issue #1343

changed milestone to %2.2.16

changed title from [Seizure Warning, 2.2.14 Prerelease] Follow Your Rainbow flashing textures in the scrolling section in software mode to [Seizure Warning] Follow Your Rainbow flashing textures in the scrolling section in software mode