Forest Pack leaves not correctly rendering

I have been using the official Roblox Forest Pack for the majority of the trees and foliage within my game. The issues arises however when I was attempting to “winterify” my game’s map, a part of this involved changing the appearance of tree leaves. To do this I downloaded the original ColouMap, took it into GIMP and altered the colours a little to make a snowed over look. I then took it into my game and uploaded it directly from my computer into the ColorMap section of the leave’s SurfaceAppearance, from there I copied the AssetID that it generated and used a script to replace it from every single tree. The kicker? Next time I opened the project in Studio all the tree leaves appeared as a blank mess of polygons and now whenever I try to re-insert the original forest pack the leaves are also not loading on the leaves there either. Another thing I’ve noticed is that it only applies to the Beechwood trees and and all the other trees the reuse the same ColorMap. This issue is super infuriating and any help would be greatly appreciated as I need to release a update to my game soonish and this issue is preventing me from doing-so as all the trees just appear blank and unfinished. I’ve attached screenshots of my issue to provide further insight.

Original tree leaves (no modifications)

Modified tree leaves (winter version)