Project management - Service x Team member grey out

Hi SAP Experts,

I wonder if someone has already had a few service x team members grey out on the project management > work tab, even though there were no actuals for the appropriate row?

I believe ByD has only one rule to restrict modification/deletion on the work tab:

• If the team member has entered actual work (active or approved time).

Here are a few examples:

Note: All services are defined as "PBTM - Service - time and material (project)" under the item time

I would appreciate it if anyone could share the reason for this and if it is possible to delete those unnecessaries rows.

Regards,

Pedro Muller