Looking for a way to stop the dig spots from flipping during animation.

[LooneyLuny]

So I've been working on a retexture for dig spots that turns them into mushrooms with an animated butterfly. I got the sprites all drawn out, but when I tested it in game, the sprite continually flips horizontally, making the sprite and animation look really weird. I remember another dig spot mod I tried did this too, the only ones that don't are symmetrical so it probably just isn't noticeable. Is there any way to prevent the sprite from flipping?

Attached is my mod in progress if you want to check it out yourself.