When I am trying to load TSM-icons I get the following error which is caused by MIRV:
Error while loading virtual-signal prototype "empty-cargo-wagon-ammo-mirv-ammo" (virtual-signal): Sprite '__base__/graphics/icons/atomic-bomb.png' has mipmap count set to 4, so it's size is expected to be multiple of 8. But its size is 1x1.
Also reported on tsm-icons before investigating to much https://mods.factorio.com/mod/TSM-icons/discussion/5fdf27403cc4747e7f8f4383
When I change the mirv-ammo icon and mipmap size to the following it works:
icon_size = 64, icon_mipmaps = 4,