I have a roku express+ connected to a LG Smart TV. Recently, just about every app has been locking up off and on. I have done the normal system restart, checked for updates, unplugged power and plugged back in, and even did a factory reset. These steps will randomly work, but more often they do not work. Some of the apps that this is effecting: Netflix, Disney+, SiriusXM, ESPN, & NBC to mention just a few.
Any ideas?
As with all of these devices that use a USB port for power, make sure you're using the supplied USB power adapter plugged directly into the wall and not the TV's USB port. Surge protectors and some power strips have been known to cause problems for some people as well.
Beyond that, does it seem to get excessively hot? They get pretty warm, but shouldn't be too hot to touch.