I've seen a specific creature tileset issue come up in
a few posts under the DF Gameplay Questions and in
the Tilesets and
Graphics subforums.
Whether it cropped up with people who were not using the LNP or people who just left out the fact they were using the LNP - the issue is currently present in
the most recent DFgraphics repo for 42.04 which the LNP uses.
To the point, creature_savage_tropical.txt was removed in 42.04. With the exception of the giant desert scorpion all were moved to other files AND renamed (e.g. LION_GIANT was changed to GIANT_LION, etc.). In addition a giant toad became a "giant cave toad" and a
new giant toad was added. In other words, TOAD_GIANT became TOAD_GIANT_CAVE and a GIANT_TOAD was created. I believe the only thing Toady forgot to mention in the auxiliary file changes was TIGERMAN changed to TIGER_MAN.
While it's not common for Toady to change creature definition names - he did change them in 42.04. Demonstrably you can install a 40d graphic set in 42.04 without issue, but your definition file(s) would be out of date. You will NOT get an error with outdated definitions, but you will get one if you are transferring a save file that was created for a previous version. The save
is compatible - barring your standard compatibility issues for doing such a thing - you just have to update the definition of the creatures in question.
I skimmed the DFGraphics repo and even the most recent Gemset for 42.04 has definitions that are 2 months old and I visibly see a graphics definition text named "graphics_savage_tropical.txt" in the set that was
posted today by fricy.
To be clear, I am not faulting fricy. While he is nuts for trying to maintain all of those sets at once, I think everyone in the LNP community would commend him for his contributions. Just dealing with the Pheobus set alone -
multiple graphics with multiple definition files from various authors using various organization . . .
what a nightmare!As an aside, I did take into consideration that graphic sets may work a bit differently in the LNP than the supported method, because I noticed a few odd things on the repo (like every set has it's own object and data folder . . . ??). I also recall fricy having issues last summer with a save file related to graphic sets "raws," but I honestly don't recall the specifics because I dropped the investigation back in September 2015.
Regardless . . .
tl;dr Your graphic set repo has outdated definitions that will create FATAL ERRORS in transferred saves and will ignore parts of the set without error in 42.04 and forward when generating new worlds.
I hope that helps.
Edit: I didn't see a DFgraphics repo thread, so I thought this was the best place to post something that addressed
all LNP packs.