@Bigbug
the code that checks if telemetry is on is here
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if config_telemetry is 0 it is disabled but if anything greater than 0 or equal to 2 then do not execute
Can you do a manual check in the db to make sure config_telemetry is 0
This will be in the settings table.
Make sure in settings that only 1 row exists as well
Then re-execute cron