I use the latest version of the extension with 0.35.0 k6. Occasionally during the test I get the following error:

ERRO[0370] Failed to store timeseries. error="server returned HTTP status 400 Bad Request: duplicate sample for timestamp"

The errors are not terribly frequent, but not rare either - I've got about 25 errors after 10 minutes of the test run with 255 VUs generating the load.

Is it possible to somehow mitigate the issue so that the samples are not dropped? Also, is it possible to asses the number of duplicate samples, i.e. how many of them were not written because of the error?