Toilet training help!

Hi, my DD is only 22months, but for the last two months she's been asking to go to the toilet to do wees, and has started doing poos on the toilet in the last couple of weeks too.
We use cloth nappies, and when she has a nappy on she will come and tell me she needs to go, so I'll take her to the toilet and she'll go and the nappy is pretty much always dry so we can have a day of using just one or two nappies.

The weird thing is, if I put her in knickers, she will wee in them without fail!!! If she has knickers on she won't tell me she needs to go to the toilet like she will if she has a nappy on, she will just wee in the knickers!! I even ask her if she needs to do wees, and she says no, like just now she said no, then wee'd on me and the couch!

Why is this happening? I would think maybe she's not ready, but then why can she tell me she needs to go when she has a nappy on? Any suggestions?

Ps, she just peed on the floor right now even though she's just been on the couch lol! Off to clean it up, again

Maybe try having no absorbtion in the nappies and doing them loose enough to pull on and off like undies for a couple of days to see if that makes a better intro into undies? Have a talk and say undies are like mini nappies but can't absorb the wee (you will know what will work better with your child though).

Thanks ladies! We did a whole day of bare bum time the day before yesterday which worked well, then back into knickers yesterday and she was great, no leaks! Even braved taking her to the mall in knickers, went to the loo before we left and after we got there, and before leaving the mall and she stayed dry the whole time no accidents so far today either so think we're getting somewhere now

Thanks for all your advice!