Model shrinking during animation

I’m having an issue which is that during a specific animation the model will shrink. All the other animations work just fine and I am certain I have exported it in the same way as the others. I can also see no difference in the import settings between my other animations and this one. Has anyone encountered this before? Happy to post pics and such if necessary. Please help!

in the animation remove scaling property, If your model is shrinking then you must have done something to the scaling property, remove the scaling property from the animation or do not make any changes to the scale while recording the animation