I did playtest it but seems like this one is more out of the way than I anticipated. You're probably talking about the same location as the previous comment.

The way to solve this one is to climb the mountain from the backside, the boundaries do not extend completely so you can pass it in the right side after hopping onto the patch of land where the mountain is.

Maybe I should revisit them and fix the locations that are covered by the boundary hotspots to save some frustration.

You might play through on your own and make sure they are all grabbable, on the first swamp level, the one up on the mountain is out of bounds and it pushes me back, preventing me from grabbing it.

Thank you a lot! I think the position you're talking about is accessible from a very specific way, but I don't even know what I was thining back then. If you have some other locations you think are inaccessible let me know, and I'll try to compile an update for the mod.

this mod is very fun, i love how it pushes you to traverse areas in the levels you might have otherwise not noticed even existed, or at points i find myself considering some of the set dressing a lot more than i otherwise would have, just cause i have to give a name to the stuff in the hints to remember what i'm looking for, but, some of the placements are in areas so out of the way that the platforming doesn't even work properly, which is a bit frustrating, and in the level 'catchers' the last one is actually like, straight up out of bounds, i checked in the level editor