Itemfinder doesn't read nearby map connections (Generation I) (design flaw)

Found on pret Discord. This is another case of Generation I (and probably Generation II and not sure about other generations) weirdness, rather than a bug per se. On Route 12 (at y=63, x=02 precisely) is a Hyper Potion. Itemfinder will stop responding after walking at least 5 steps away north/south or west/east. Close by to the item (within the 5 step limit) is a west connection to Route 11 and its gate.
However, the Itemfinder fails to respond;
1. First it considers the nearby items for Route 11 (of which there are none), ignoring the fact that there is a connection to Route 12 with an item nearby.
2. Second, maps in Generation I/II are not exactly a 'web' like they are in Generation IV (why going out of bounds in certain places without map connections loads glitch map 0xFF, usually a freeze); the coordinates are relative to the current map with a given boundary for the connection. In this case going west of Route 12's x=02 will load Route 11's x=59; where x=60 is the east boundary for Route 11.

[@joefarrow1599]

I think the behaviour here is all totally fine

[@Will-uv9kx]

Explain? I'm a little lost

[@joefarrow1599]

I think the point of the video is that near the beginning they use the item finder quite close to a hidden item but it's not picked up because the item is on a different internal map to where the player is standing. But the discrepancy is quite small and this is such a niche usage case so personally I think the behaviour is fine

[@maxalmonte14]

Yup, it tells you where the hidden items are, as long as you are in the same route as the item.

[@globbster413]

gen 1 never ceases to amaze me.
do you think this is what Tajiri meant by a "virtual bug cage"?

[@starleaf-luna]

…you're on the pret discord?

[@Guimhj]

1st gen is the bugs that keep on bugging