When I analyse in a study, the engine will give pieces away. At first I thought it was me, but then I realised there may have been an update.
I checked and it seems the newest engine does not work yet. If I choose the previous, it works as usual.
There is literally a forum below having a conversation about this
@NTCM you don't need to create anew one.
Confirm with both
lichess.org/training/Pxz2k(It evaluates the position as draw and suggest 27. b5, sacrificing the queen for nothing and still after capturing the queen evaluates as draw.)
and my thread
lichess.org/forum/lichess-feedback/is-it-a-bug-very-strange-evaluations-and-suggestions