Override query won't upgrade - upgrading from 7.9 to 8.0.12

Greetings,

we tried to upgrade from 7.9 to 8.0.12; some tags had an override on the SQL query, which was not upgraded correctly. The tag reported the query that was compiled into the datatype. We would like to know if it is an error given by upgrading from one version to another or if ignition does not support the upgrade of overrides on certain types of tags, thanks!