I'm working on a resource pack that incorporates the CustomModelData tag with certain items, and below a threshold of durability, the items flash red, using the Interpolate tag to fade in and out. I found that when these items are enchanted, the animation freezes on the frame it received that enchantment, making the items appear a constant shade of red and no longer flashing.

This is the specific animation used to create the flashing.

{
 "animation":{
 "interpolate":true,
 "frames":[
 {
 "index":0,
 "time":1
 },
 {
 "index":1,
 "time":30
 },
 {
 "index":0,
 "time":20
 }
 ]
 }
}