Unable to upload back accessory despite being smaller than maximum bounding box?

Would post this in bug reports but I don’t have the permissions to do so, figured this was the next best thing, and someone here might be able to assist me.
In short, when I try to upload back accessories as UGC items, roblox errors due to them supposedly being larger than the specified bounding box of 10x7x4.5 despite the item being much smaller than that
I’ve encountered this bug with several different items of mine that I’ve tried to upload, and I’ve found the only fix to be making the items way smaller than they should be (smaller than 3x2x2 studs), which for obvious reasons doesn’t work as a good fix for items that necessitate a larger size than that.
Anyone know any fixes for the bug? Or if not, can someone capable of doing so report it in bug reports?