Ok, so the scripting subsystem appears to work fine.
I’ve edited the quiktune script (see attached) to give additional debugging output. Copy it onto the SD card and restart your flight controller. If it’s running, you should get a message every 5 seconds or so.
Your logs are showing that you’re using the “Matek F765-SE” firmware, which is different to the F765 Wing firmware. Could you confirm the board/firmware that you’re using?
I don’t see a product with that name on Matek’s website (though it is almost certainly EOL and may have been removed).
I imagine you might mean F765 WSE? In that case the firmware you’re using is correct.
The WLITE and WSE series are less performant than their WING counterparts. This could be the root cause of the issue, though it’s odd that you aren’t seeing any debug output or memory errors.
Maybe I should just accept that it is not possible to run the script on this hardware. It is a bit strange as you say. I would expect some kind of error message.