I have a build setup using LE 9.2.7 (also tried 9.2.6) on a RPi 4B 2Gb device. For live TV use, and largely it's been using IPTV addons (but also happens when using PVR Simple Client), the device locks up/freezes and goes black screen when trying access a channel. This typically happens when the channel is loading/buffering. It is ONLY with the newest RPi 4B boards that have a hardware revision noted at b03114 (vers 1.4) - I've tried 9 different boards and its the exact same result each time.
I have a couple of older boards with b03111 (v1.1) and another couple of boards with b03112 (v 1.2) and they work fine.
Cross checking with the same set of three different SD cards, so I don't feel that is the culprit because the results checking back and forth between boards and SD cards is consistent.
Has anyone else experienced/experiencing a similar issue, or have any idea what I could try?