I upgraded syslog-ng today from 4.6 to 4.8 and my disk drive almost immediately filled due to the local error from syslog-ng

2024-09-20T11:59:38.760-07:00 hostname syslog.err syslog-ng[600690]: Error invoking seek on file; filename='/var/log/syslog.pipes/mailstats2', error='Illegal seek (29)'

This logged repeatedly until the disk filled up.

My source definition for that pipe is

source mailstats2 { pipe("/var/log/syslog.pipes/mailstats2" log_iw_size(900000) log_fetch_limit(500) flags(no-parse) ); };

Any insight would be useful.