Can't send query-alarms via e-mail in 8.8 PL15

Hi all,

I have 8.8 PL15. Made an alarm based on a query and am trying to send it via e-mail. The SBO Mailer is properly configured, but the alarm is not going out. The event viewer on the server shows:

MessageEntity::MarkOneRecordError::Query SQL AOB1 failed -2028

Note # 1440854 says that it's a product error and will be fixed in a later patch. When PL12 was released, the correction was included, as note # 1464641 states; but I already have PL15 and the error still persists.

Any ideas on how this can be solved??

Thanks for any help or advise,

Best regards,