Studio troubleshooting

You see	Why	Fix
Studio sends you to the login page	account lacks Studio Staff	assign the role
403 on build or publish	account lacks the Studio Staff role	assign it
"Role name is required" on install	old plugin with unnamed roles	name each role
Build refused (503)	two builds already running	wait, retry
Compile: "package ... does not exist"	library not in worker image	use platform API or add to image
Publish stops at version step	version already installed	raise it in Plugin properties
Cannot edit a page	it belongs to a plugin (lock)	Customize
Upgrade stopped, lists extensions	extension not built for new version	upgrade extensions, or force
Service says "temporarily unavailable"	backend service stopped	Deploy, Manage backend service, Start
My override does nothing	its block id no longer exists after an upgrade	fix it in the override editor