Why can't I update Macbook Air from Catalina 10.5.1 beta to a newer version?
My current Catalina version is 10.15.1 Beta (19B86a), but when I check to see if there's an available update, it says that my Mac is up to date. I downloaded Catalina 10.5.4 update for an upgrade but I got no luck, it gives me an error as stated on the screenshot below. I thought I need to update my beta version first before upgrading to 10.5.4, so I downloaded Catalina 10.5.1 update, but same error persists. Could anyone tell me what's going on?
MacBook Air 11″, macOS 10.15