Let me preface this by saying that I'm running 3.14.0. Yes, I know this is not the current version. We set everything up about 7 months ago and the Publish Tag Manager function worked fine. Now it doesn't, so this hardly feels like an update issue.
Now when we use publish, this is what happens:
It seems like something is preventing the Publish action from actually doing anything, other than just creating a version. If this is specifically something that is known and was fixed by a Matomo update, then so be it.
@elrauk12 sorry about that. Any chance that you could create an account for us on your Matomo so that we could get roughly an idea what is happening there? Or maybe you could export the container so we could try and reproduce it? If so, can you send us an email to hello at matomo.org ?
There's a small chance it'll be fixed in the next release already but it's hard to tell.