Oppo makes good stuff. Really miss their Blu-ray players. Never got around to picking one up before they shut down the department to focus on mobile. 🙁
Could be a software bug. I’ve always had some weirdness with my A7 Lite and even more since the most recent software update. Apps can change the orientation but I’m not sure how they interact with the orientation lock. I know some apps are landscape only, I suspect those that are portrait only may do that too