Hi there, good to hear from you
She could well be starting the 2-1, the process can take several months though. Do you think she may be telling you that she prefers her longer nap in the morning now, rather than in the afternoon? Could you perhaps consider putting her down a little later in the morning and going for an even longer morning nap, and a CN later on? Have a read of this to refresh your memory, what you do think?
From 2 to 1 nap transition (10-12m and older)Those early evening NWs say OT to me, could you try getting her to bed a little earlier?