AWX 3.0.1 stopped showing job outputs

We have AWX 3.0.1 running in the Docker containers. The database is installed on a separate server. Everything worked just fine for a month or so. Starting a few days ago I’ve noticed job outputs are missing and when I download output, files are 0 bytes.
Does anybody know how to troubleshoot this?

There should be a long standing bug filed for this. I’ve seen this since 1.x(6-7?)