Hi Klaus,
if you suspect that some devices have not synched, please open an issue with support to investigate.
Please enable debug on the integrated OneClick server, as below, create the synch and upload the tomcat.
Enabling Debug Logging
To facilitate the investigation of issues, enable CA Performance Management integration debug
logging on the OneClick Web Server.
Follow these steps:
Navigate to the OneClick home page.
Click Administration, Debugging, Web Server Debug Page (Runtime) on the OneClick home
page.
Select ON for the 'Performance Center Integration' option.
Select ON for the 'Performance Center Integration Sync' option.
Note: Enabling CA Performance Management integration debug logging can generate a large volume of data in a short amount of time.
regards
Shane