At about 2 years old..... sleep tweaks happens.
Both my kids did that, with naps and bedtime.
For me, when I was pregnant with my 2nd child... my daughter and I... napped at the SAME time.
I told her, Mommy has to rest and take care of my tummy... she understood... she and I would either go to my bedroom or on the floor of the living room.
She'd make her spot all comfy with her stuffed animals... she'd even put a blanket on me... and I would be on the sofa.
And we'd nap... together. It was a daily routine... when I was pregnant.
Once baby came home... she STILL napped everyday... and she and my baby (my son) would nap at the SAME time. I did it that way on purpose... since I then had 2 kids to coordinate.
That helped.
And I would often, nap too.
Your child to me, still needs a nap.
But it is an age related sleep tweak.
Just KEEP to your DAILY nap routine.
all the best,
Susan