Thank you for reaching out. It turns out the issue stills occurs less often after I changed the screensaver, so that may be a red herring, although when I changed the screensaver to "Roku Jungle" the issue became worse.
I see my thread was moved to "stuck on logo screen" but my Roku 3 isn't fully stuck yet, it does reboot and makes it through then stays working fine for a while. It will stream fine for hours with no problem. Usually the issue happened upon waking up from the screensaver, although I have a suspicion the issue is really something related to the tiles layout as when I reordered tiles is when the issue happened, since today just deleting an app caused the same freeze and crash/reboot.
Today, I was able to also make the issue happen while I was trying to remove an app and the screen froze. I was able to tracker id. Here is the info:
Model: 4200X-Roku 3
Serial: 1GS3AK101432
(there is no "device id" on my about page)
Software version: 14.6.4 build 9914-04
GC version: 14.3.9
Issue ID: 32-345-695
Let me know if this helps. If note I will see if I can get a new tracker id specifically when the issue happens upon waking up from the screensaver. For now I have changed the screensaver to the default "Roku Logo Rain" which seems to be the simplest screensaver in case a more resource intense screeensaver is causing it.