I'm trying to work with a process backed record and create either a feed or

I'm trying to work with a process backed record and create either a feed or grid view of a CDT list.
Every time I try and de-reference the CDT it seems to treat it like a list of text rather than the actual CDT type.

If I want to return a child property from the first element in the list using the formula
if(rule!APN_isEmpty(rf!accessUserList),"None",rf!accessUserList[1].accessUser)

I get the error:

Expression evaluation error : A grid layout column [label=“Label”] has an invalid value for “component”. The component in row 1 encountered the following error: Expression evaluation error : Invalid index: Cannot index property 'accessUser' of type Text into type Text

OriginalPostID-194705

OriginalPostID-194705