Zone Builder - Persistent "spaces not allowed in key names" error on Linux

[kitycatte]

I get this error consistently, even after going through the recommended steps on how to fix this. I am at a loss.
All I can think of is that, for some reason, SRB2-22.cfg shows up on the computer as C code and the three problem files show up as plain text.
EDIT: Adding a double-lined comment at the start of the file makes the computer read it as C, but that doesn't fix my issue.

EDIT: Also, if this impacts anything, when put through the file command, the working SRB2-22.cfg file shows up as "ASCII text, with CRLF line terminators", while the three problem files show up as "Unicode text, UTF-8 (with BOM) text, with CRLF line terminators"

I have no idea how to fix this. I have removed spaces from the specific line it hates, I've made new files and put the same code in it, nothing.
Running through lutris-GE-Proton8-8-x86-64 on Pop!_OS 22.04