Thanks for these as well!
That note was spawning accidentally each time the area was reloaded until player reads it instead of only once. It also spawned the portal multiple times and each time it shined brighter because of multiple stacked lights :).
I can't seem to find any issues with items in the same tile as gates, apart from the game prioritizing picking up loot before interacting with the world, which is intended. Was there something else wrong?
PS. I have modifiable movement speed :). There's three settings: Slow, Normal, and Fast. Slow is the current one, Normal is the new default which is slightly faster, and Fast is even faster.