Errors when reading some trend samples

[APA]

Following error occurs on some trend logs with Get TrendSamples

Some logs works as expected but some return code 500 and the error message.

But if I rename the log to something else in Workstation and try again with the new id it works just fine?

Any help or ideas how to fix this without renaming logs?

[SteveGregory]

Same issue?

https://community.se.com/t5/SmartConnector-Forum/Unexpected-character-encountered-while-parsing-valu... 

I believe that a newer version fixed my issue. You can also try clearing your in memory cache. See screen shot.

[APA]

It is a similar issue yes. But we already had newer version than that post.

Is there anything I should know before clearing the memory cache?  Or is it safe to do? I mean that there are multiple users using that Smart Connector.

[SteveGregory]

I can't answer that, not knowing your setup, but it is unlikely to cause any issues.