As you can see it seems the renders of the darken and divide layers are not de-rendering. Reopening the project or opening anew one does not fix the problem. only closing and reopening the program makes the marks go away.
I am using a 1050 TI with the 580 driver
Linux Mint 22.3 - Cinnamon 64-bit
6.17.0-22-generic Kernal
AMD Ryzen 5 5600X 6-Core Processor × 6 CPU
Linux Vulkan Render
ArmorPaint.org - v1.0 alpha 2026/04/11 8f273f7

As you can see it seems the renders of the darken and divide layers are not de-rendering. Reopening the project or opening anew one does not fix the problem. only closing and reopening the program makes the marks go away.
I am using a 1050 TI with the 580 driver
Linux Mint 22.3 - Cinnamon 64-bit
6.17.0-22-generic Kernal
AMD Ryzen 5 5600X 6-Core Processor × 6 CPU
Linux Vulkan Render
ArmorPaint.org - v1.0 alpha 2026/04/11 8f273f7