UV rotation affects Mirror painting

[Cubouse]

What are you trying to do, and what do you expect to happen?

Painting on faces that have their UV rotated, with Mirror Painting toggled on.

What happens instead?

The mirroring occurs around the wrong axis for the 90° and 270° UV rotations.

Model format in which the issue occurs

Bedrock Entity

Blockbench variant

Program

Blockbench version

4.12.4

Operating System

W10

Installed Blockbench plugins

N/A