Hi, sorry you were missed.
This might be better placed over on the toddler sleep board but I'll try and help if I can!
Sounds like you're in the 2-1 transition time. Sleep can go really haywire when they want to start to begin the transition. That and teething!
She's doing really well in terms of her overall sleep throughout the day. 12hrs at night plus a 1.5hr and a 40mins nap. Has she always been high sleep needs?
That first A time is vvv short for a 13-month old. I would work on extending that first A by 15mins every 3 days or so. The fact she's sleeping for 1.5hrs makes me think she does like a short A first thing, but in order to work towards transitioning to one nap, it really needs to be around at least 11 or 11.30.
I would also cap that last nap to 30mins to begin with then keep BT at the same time.
I'll be back in a mo to post some really helpful links about the 2-1. They helped me no end.
From 2 to 1 nap transition (10-12m and older)from 2 to 1 nap - how, when and the bumps