Useful information to include:

• Minecraft version 1.12.2 (Development Environment)
• CC: Tweaked version 1.83.1
• Detailed reproduction steps: sometimes I can spot a bug pretty easily, but often it's much more obscure. The more information I have to help reproduce it, the quicker it'll get fixed.

1. Create a separate mod
2. implement ILuaAPI
3. in the startup() method create and mount a resourceMount with a subpath (ex: "example/something").
4. start a computer
5. observe example/something does not exist
6. create "example"
7. observe example/something now contains all the files in your mount

Repro Video.zip