Question about UCI variants

[Kurt22]

Thanks for the help! Turns out the debug log revealed it was a very simple issue: spaces in the executable name.

(The specific error in the debug log: "194 <UciEngine(1): Unknown command: (2).exe", the executable was named "stockfish (2).exe")

I have no clue why this is an issue with only my variant's engine (it doesn't prevent me from running "C:\Program Files\Houdini 6.exe", for example) but it works now