Game crashes after nerfing a team's performance with new parts

[Enhabe1]

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When I nerf the performance of a team by creating new parts, it works normally at first. However, when I create a second or third part, I receive the error "something went wrong, please restart the tool." After restarting, the error persists, and I am no longer able to edit the save. Additionally, if I try to play with that save file, the game crashes and closes.

save0.sav.zip