A possible reason is because you may have Service Item Source set to [Work Role-Work Type].
The only way we can map to the correct GL account is through QBO items. For service lines (ie where there is no ItemID) we create an item specifically for mapping to the GL. This option defines how these items will be named when created.
The batch data shows Work Role "Specialist Project Manager" and Work Type "Onsite" in the memo field. This resolved to an already existent item in QBO, but with a different GL account. This could happen with any item mapping if the account number were to change in either system. If this Work Role-Work Type combo potentially resolves to many GL accounts, they may want to use one of the "GL Account" Service Item Source options. Otherwise if the account number simply changed in QBO or CW, they just need to update it in the other system to resolve.