When receiving images via Signal my FP2 (LOS 18.1) often (not always) won’t respond properly anymore. The vibration can be heard, then I turn on the screen to see the message. However, no notification is shown on the lock screen and the phone won’t respond to the swipe from the bottom to the top to get to the unlock screen. The screen usually switches off again after the timeout period as if I hadn’t touched the screen at all. When I want to turn on the screen again it sometimes lights up but stays black before it just turns off again. Sometimes I resolve the issue by restarting the phone (by pressing the power button I might get to the selection for shutdown/restart) or by switching it off by holding the power button very long. Sometimes I just need to wait for some minutes, then the message is displayed on the lock screen and the phone responds again. I have had the exact same behavior in LOS 17.1 already but didn’t use Signal on FPOS before, so I cannot say anything about that. In LOS 18.1 something new appeared when I turned the display on for the first time: On the lock screen I have all the symbols on top duplicated but with some offset. It looks like the lock screen and the top bar of the unlocked screen are shown at the same time.
I have searched for this behavior in the search engine of my choice but didn’t find anything about this. Other messengers, mail apps etc. have no issues showing their notifications, my phone has plenty of memory left and when I installed LOS 18.1 I wiped the internal memory, so Signal was reinstalled afterwards again.
Does anyone have such a behavior, too? Any settings that I could try?