It has become more frequent on my “Roku sound bar pro” than my “Roku stick” but when browsing through main menus, searches and apps, the Roku will partially load the screens display. Pictures will be fine but letters and number come in as blocks, or even just missing. Entire titles reduced to a single random letter of its entirety. I have done factory factory resets, reduced the main menu to less apps Incase it’s a cache or memory issue, ensured connectivity both plugged in and wireless with the router and to no avail, resolved the issue.