Rarely I receive this error when running tests:
/bin/bash: /opt/coderunner/dotnet/cg/csharp/build_debug.sh: No such file or directory
Timeout: your program did not provide an input in due time.
Re-running the same test with the same code later works. But it probably also happens when submitting a solution.
So far I only tried the Shadows of the knight puzzle, maybe it’s specific to that?