Since the pre-compiles are never debug-release versions, you must make sure
that only the release field contains a template and that the debug field is
empty... ...If you have the debug field filled in, especially while using the
pre-compiled templates, the export process will fail.
In contradiction with this advice, I experimented with the debug templates to diagnose some crashes. They seemed helpful, and it does not cause the export process to fail. I'm unsure whether this documentation is out of date, or only applies to the GodotSteam plugin, but either way I'll leave the debug templates in place unless we start seeing issues.
From https://godotsteam.com/tutorials/exporting_shipping/:
In contradiction with this advice, I experimented with the debug templates to diagnose some crashes. They seemed helpful, and it does not cause the export process to fail. I'm unsure whether this documentation is out of date, or only applies to the GodotSteam plugin, but either way I'll leave the debug templates in place unless we start seeing issues.