I just built up a gravel bike with new GRX DI2 and an old internal battery I have had in a draw for years. When I was setting up my gears with no chain on I couldn't get the derailleur to go to to the 11 and stay in the 13. Having only run older DI2 (which can cross cluster in both directions) I couldn't work it out so went to my local shop just around the corner who changed the front derailleur to the big ring and voila it went into the 11. Seems later gen derailleurs are programmed to stop cross clustering small ring to 11. I can't recall trying to go from the big ring 11 to the small ring 11 and what happens but will definitely go to your 13 and may need two shifts on the lever as it has to do two separate changes?