Unkonwn messsages appears in discusssion

In OJS 3.3.0.13 unknown messages appears. Users didn’t write them.
For example see the picture

Hi there,

I see the same issue. In our case unrelated authors appear to open a discussion (even if not involved in the submission, so they dont have access). This seems to coincide with them submitting a manuscript or revision and starting a discussion in their own submission.

However, it appears that the corresponding author in the other submission can actually see the empty discussion and wonders about the role of the person starting it.

I hope that the developers are aware of this bug and fix it in an update.

Steps I took leading up to the issue
Authors have noted empty messages in their review discussion from unrelated persons. I checked the timing of these and they typically coincide with these unrelated persons being active in their own submissions.

What application are you using?
OJS 3.3.0.11