Did you activate the team server for your project? Or is it a local project? Team Server needs to be enabled whan using the cloud deployment out of studio pro.
Yes it is enabled.
I do commits and I have the history:
Also, I tried to cancel the project and open it again downloading it from the cloud, but the problem persists
Do you have the app already linked to a node?
If so, then you won’t be able to deploy in sandbox indeed.
No, that wasn’t.
Anyways, I contacted the support since it seemed an issue related to the account.
They did some reset procedure on my account and now it works.
Probably a bug from their side, glad that is fixed now.