It seems like the deal with Palmeiras already agreed with Barca, according to Matteo Moretto at least.
Loan with obligation to buy for 25M for 80% of his rights is the quoted numbers by other journalists, including Brazilian sources iirc (feel free to fact check it, I might have missed something).
Betis are trying to milk Barca and it is stopping the deal.
The one missed important detail, however, is Roque approval. Nothing on whether he gave his ok or not.
I think a Betis source denied he wants to leave, but they have incentive to leak that. OTOH, an agreement of that magnitude between Barca and Palmeiras is highly unlikely without Roque giving an ok, also Curry has an incentive to do it (like every agent, he gets a commission on any transfer, and he won't kill relationship with us).
Deadline in Brazil end on 28th of February. So, we will know how it ends soon, for the time veing at least. Since some sources say we will agree deal for July move if Betis continue to act that way.