SFC module fails to start with empty .proto files present

This will be fixed in 8.3.5 and is currently available in the 8.3.5 nightly.

The likely cause for the empty file is that there’s something in the chart that’s failing to serialize properly which is preventing the chart from persisting to disk. It would be worth tracking that down to prevent the empty files in the first place. Do you have logs from the shutdown?