Umbral Blades has a continued issue with terrain. My character has Precision Cuts (Umbral Blades throw to your targeted location) but beyond a certain distance the Umbral Blade gets sucked under the terrain and then expelled from the terrain beyond the maximum distance the Blade could travel, very often nearly off screen or completely off screen entirely.
The best place to test the issue is in the Forsaken Trail. Very often when you target a Blade into the bare ground (No rock tile terrain) the Blade just gets yoinked and expelled.
Many bosses that spawn from a central location also collide with the Blades and cause them to stop. Elder Pannion’s little Void slime he leaves behind after transforming will completely stop a Blade mid flight causing it to stop abruptly.
https://imgur.com/a/Y6Ovu7A
Player.log (962.4 KB)
Edit: This appears to be an issue with Chakrams as well. The Aqueduct area just eats projectiles unless they are fired along the areas where the water is streaming down. If you fire a Chakram into the areas without water, they disappear, do no damage, and do not return.
The Nightmare Amalgamation spawn point in the Ritual Site will also delete projectiles/stop Umbral Blades from passing through the area where it spawns from. There are also many many many areas with NPCs that, for some reason, will delete projectiles if you try to shoot one through them.