I've seen people reporting this on the base game occasionally so I don't think it's caused by this mod.

That what that was, it scared me. I was walking into the uncharted and I saw a giant.

This happens to me. And it only happens to the jaguar animal. Cross coding I presume?

The Jaguar Warrior is not in the base game, the Aztec unit is an Eagle Warrior. The Jaguar Warrior comes from the Steel & Thunder Unique Units mod. Now, maybe the massive unit issue is a base game bug, but the fact that a Jaguar from your mod occasionally appears as an oversized Jaguar Warrior unit from S&T:UU is presumably some form of incompatibility/cross-referencing issue.

Just a heads up. And obviously, this is not a game-breaking bug, just a highly immersion-breaking one. Everything still seems to function correctly other than having a giant feather-covered giant wandering through the jungle with a red-barbarian cat icon. I justify it as the game telling me that there must be some Uranium nearby and the radiation is doing weird things. :D

I didn't mean that the Jaguar Warrior is in the base game. I meant that the random scaling errors are a base game issue AFAIK. Do you use any of the R.E.D. mods?

OK, finally worked this was the result of an .artdef interaction between Wildlife and S&T:UU/Moar Units. Now resolved!