After upgrading from 1.3.1 to 1.5.2 the error 'driver: bad connection' occurs randomly. On random moments and random metrics (both for default metrics as provided custom metrics) as it seems.

The setup in which it is used:

• RHEL 8 virtual machine
• Using env variables for connection (DB_CONNECT_STRING, DB_USERNAME, DB_PASSWORD)
• Using Oracle instant client 19.14.0 and 19.25.0 (provided by LD_LIBRARY_PATH)
• Target database is PDB version 19.22.0.0

I have not made any changes in configuration when upgrading.