re boot everything (hardware) ... sometimes an auto update of any of the addons used, or live streams (NOT from tvaddons- 3rd party addon) may cause conflict or file corrupt and almost impossible to find in which case a fresh install may be the only fix...i find i had to do this when an addon (in my case, Genisis ) is updated to newer version and screws up everything else ( it appears) and started to hang when opening up folders on different addons
so, no matter your platform, UNinstall and re-installing Kodi usually fixes all the hanging and/or freezing issues..it sucks but works - gl