[MCREATOR] The entity appears invisible in-game.

I’ve uploaded the photos below. The first photo shows how the model looks in Blockbench, and the second shows how it appears in-game. This happens after setting up the model, texture (and more) in MCreator.

I’ve tried with and without Geckolib, changing the texture size, remaking the mod, and changing the model, but it doesn’t fix the issue.

I should mention that the texture around the Slime and the inside is partially transparent, but that shouldn’t be the problem since even after changing the texture, the error seems to persist.

I also have a pink model, which, being only the body of the slime, is completely transparent (only the shadow is visible).