Withdrawing funds from Pie - free to invest?

Hi all, I am new to the Pie feature but love it already. I have yet to start investing with it, but I have it all set up as of today. I was wondering though, once I invest funds in my Pie, if I were to then withdraw them would they go back to the 'non-Pie" funds that I could use for other investments or would I be effectivelt withdrawing them from the app? I invest using an ISA so worried about losing the tax break on the funds.

Thanks!

It’s fine. Funds will withdraw to the free funds within your ISA. I’ve done that.