Running more than one version of map data can cause conflicts even if all the data is from the same vendor such as Garmin's current most common supplier, HERE, and even if only one of the maps is selected in settings. That's something that isn't clearly understood even by many experienced users, particularly the latter underlined fact. That little quirk can actually be exploited in some circumstances such as tourists returning to China with a Western device unsuited to Chinese language usage where additionally loading an English version of the same Chinese map allows use of some of its features even when if it's not selected. POIs in particular are often accessible in deselected maps. So i'm quite certain your device's RTL Trap shut-down errors were due to duplicated but slightly conflicting POI data.
This can finally be marked "solved" i think. A lot of red-herrings in this thread before the detective work has paid off however.
Thanks, marked as "SOLVED" and note about solution added to initial post.