Hugs Hun, developmental changes Ike this can really mess up sleep. I would APOP her best you can to get her down for the night.
If she is just playing and not crying leave her be, she may just get tired and crash out. I found this phase lasted a week or so and I tried to PD after lots of A time practice and APOP once things got a touch messy to avoid OT cranky mess!
Hang in there x