Several problems with Fortimanager 7.4.6

Hello.

Two weeks ago we upgraded from 7.0.13, following the upgrade path, to 7.4.6 (HV).

After this, we've got several problems.

1. Often the connection to the manager was lost. Reconnect after several seconds.

2. Sometimes modyfications on the policies werde successful, but on installation there were no changes found.

    A retry fixed it on most times. I view the modifications first. There were well.

3. Sometimes no success was shown. The modifications were done, but the dialog didn't show this..

4. We had some modifications, were an error message . I don't know the exactly text, but something with meta_data on the end.

Our Fortigate are 600E with VDOMs and 40F.

For testing we changed we used Chrome and Firefox instead of Edge. No changes.

Before upgrading we ran the recommended diagnose tasks sucessfully.

Afer the upgrade to 7.4.6, again. All was well.

The firewall logs don't show any deny messages.

Does someone these issues here?

Thanks in advance for your answers.

Regards

Dirk Emmermacher