Animated bat messes up in export from 3ds Max to UE4

Hello!

I have an animated bat animal with a flying animation, while it plays just fine in 3ds Max, upon importing it into UE4 the animation messes up and begins stretching the creature into some very unholy positions. To top it all off the texture itself looks very jagged and off (miscoloured), compared to the smooth look in 3ds Max. I have attached a couple of screenshots to try and demonstrate what I mean. Apologies for my poor english skills, but I’m at a loss of how to import this dude into the games engine. I can link the FBX file and textures if anybody needs them.

Thank you in advance for reading!