Record Input as Related action Missing fields

Background on the issue:

1. Created a related action against a synced record. Created a record parameter inside process model.

2. Mapped the action inside Interface:

a!recordActionField(
actions: {
a!recordActionItem(
action: 'recordType!{7aeac830-25f0}Task Assignment.actions.{596dfe95-567c-36ec}acceptAndTakeAction',
identifier: fv!row['recordType!{7aeac830-25f0-44}Task Assignment.fields.{2acffd98-059fd5a2}TaskId']
)
}
)

3. rv!record is passed as input to Process model

{
rtTaskAssignment: rv!record  /* Task Assignment */
}

4. Received only few information inside process model:

 {TaskId=3, Workflow={WfId=8173, Label=4501_PRA110_WEEKLY}, Owner=}

Expected:

{TaskId=3, WfId=8173, rptId=89, Stage=23, Status=17, RoleId=9, ActionId=, Owner=,  isActive=1, createdBy=System, createdOn=25/06/2025 10:18, updatedBy=System, updatedOn=25/06/2025 10:18, GrpId=14575}

We are observing this with other related actions as well. All the fields are correctly mapped inside record.

How to receive all information regarding the record inside process model?