maeOpenSetup is not opening the Assembler window

Hi,

I am trying to use maeOpenSetup to open an existing "maestro" view in ADE Assembler

Here's the command that I use: maeOpenSetup("<LibraryName>" "<CellName>" "maestro" ?application "Assembler")

I see this message on the log "ADE Assembler session 'fnxSession0' started on Tue Jan  4 17:19:57 2022", but the Assembler window is not visible. 

If I try to open the cellview from Library Manager, I get this message: "INFO (ASSEMBLER-1642): Cannot open cellview '<LibraryName>/<CellName>/maestro' in the 'a' mode in a new window because it is already open in the same mode in another window.
*WARNING* (DEBASE-102084): Data trigger for viewType maestro failed."

Any suggestions on this issue would be helpful.

Thank you!