Okay, sorry to spam further, but I am in an investigating mood and did find that the error seems to come from the "save" value being set after the game starts to something like
```
"1{@24}962{@24}55{@24}2{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}0{@24}…" (this repeats indefinitely for several kilobites of data)
and then it tries to load and parse this
My guess is that, if you're using a web-based game engine, this might be a weird bug that only occurs on Mac for some reason.