Exporting shader files results in empty file

Whenever I export a shader file, it always ends up as an empty file. This is despite following the instructions of the tutorial at https://www.youtube.com/watch?v=e3_SPsh6a3A

I'm running talos via: java -jar editor-1.4.1-SNAPSHOT.jar

Running on Arch Linux, kernel 5.16.16

Java version:

$ java --version
openjdk 17.0.1 2021-10-19
OpenJDK Runtime Environment Temurin-17.0.1+12 (build 17.0.1+12)
OpenJDK 64-Bit Server VM Temurin-17.0.1+12 (build 17.0.1+12, mixed mode, sharing)

Exporting particle effects as xxx.p is fine, this only applies to shader graphs.

stdout logs in the terminal don't show any problems.