InfluxDB Persistence Service - settings stored only partially for InfluxDB2

Hi all,
I experienced the bahaviour, that my configuration entered at “Settings”->“InfluxDB Persistance Service” is partially not stored but replaced by default settings on next startup of my Server.
This applies only for the fields “Database/Organization” and “Retention Policy/Bucket” which are always set back to their default values (“openhab_db” for Database and “autogen” for Retention Policy). It seems that the rest of the configuration is stored correctly.
I am running OpenHab v3.4.2, but had the same with v3.3.0 before. Database version I use is InfluxDB2.
Am I doing something wrong or has anybody else the same problem?