Replication in assignment pattern not working on queue of structure

In reply to sharvil111:

From LRM, I could only see that the one pertinent restriction to replication in my scenario is that it can’t be used for unpacked array concatenation. Can you point out any other which applies here?

Did your above code work? It didn’t for me because the source type of RHS is not self-determined.

Also, making code from my previous post work might be a stretch because the replication used there (and many other trial and error options I tried) is not assignment compatible with elements of the queue. But then what change would make it so is unknown. Guess I have to remove the replication and move ahead.