Trying to replace the spritesheet of champions through lua who use the new champion system may cause some issues when there are other enemies of the same kind in the room

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I had some visual bugs or game crashes happening with this. You may even get a crash from killing the enemies who are under the effect of this bug. You can't avoid this by replacing the sprite with other champion sprites, champion's spritesheet can't be replaced on init, loading an anm2 file on init doesn't work either and doing it on other callbacks makes the champion lose the new system's coloring effect. Some additional details which may or may not be accurate:

• Champions who use champion spritesheets (i.e green, red, blue, orange and etc) look like non-champions or don't have proper color for their sprites or animation layers.
• When spawning champions who don't use champion sprites (like pitch black, camouflaged and pulsating for example) alongside other champions who use champion sprites, if they get spawned last, the game crashes. Otherwise they become invisible.
• Sometimes, if multiple numbers of champions not using champion sprites and champions using champion sprites are present in the same room and get spritesheet replacements, it may result in flickering or glitchy sprites or crash the game. (was testing with like 5 champions for replication).
• On certain occasions with multiple numbers of champions not using champion sprites and champions using champion sprites being in the same room(?), pitch black champion may display some weird cyan visuals.
• If sprite of a champion who uses champion sprites gets replaced and there's a non-champion enemy of the same type present or vice versa, the champion and even the non-champion enemy may get invisible or flickering sprites and even have chance of crashing the game.
• When a dark red champion whose its spritesheet or anm2 is replaced regenerates, both the spritesheet and anm2 will reset.

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The champion crashing the game even happened when getting to the next room after killing a champion and non-champion. Also, when i was testing champions, i got some results with these methods. These were tested with the init callback:

Anm2 replacement:

• If spawned by console, the sprite replacement happens before the champion sprite applies.
• I think the sprite replacement worked fine when spawned with methods like Isaac.Spawn.
• If spawned by rooms or waves, the champion color effect for most champions doesn't apply until you do something like damaging them or giving them colors.

Spritesheet replacement:

• If spawned by console, the sprite replacement happens before the champion sprite applies.
• If spawned with Isaac.Spawn, the sprite replacement happens before the champion sprite applies.
• If spawned by rooms or waves, the champion color effect for most champions doesn't apply until you do something like damaging them or giving them colors. However, this replacement method causes issues including crashes like these bugs i explained above.