HELP - Mario Party Island Tour's UVs mess up for more than one mesh

[Makoto]

I have the same problem with the 3ds game "hatsune miku project mirai" stage files are messed up once exported, even if looking fine in both programs...if it's the same issue, the model has more than one uv, but only 1st uv gets exported, and usually the wrong one as well, giving out a broken model