Mass Haste (possibly all AoE spells?) not applying

[Eters]

Description
==========
When casting mass haste (on self or on ground) sometimes it doesn't to anyone in the party.

Steps to reproduce
----------------------------

I've tried to search for a pattern for it happening but I haven't been able to find it yet, it usually happens when I'm traveling over an extended period of time. There is a moment in which no AoEs work anymore (I've tried with mass haste as it is the AoE I use the most but I've had a situation where a mind ward didn't touch anyone.)

I've considered that it has to do with elevation and some maps are perhaps uneven in height and cause such, so once the bug occurs I tried to cast mass haste on myself, by clicking my character's icon on the top right to be 100% certain I'm self targetting, and it still didn't apply to neither me, my henchmen, my summons or my party members.

Transitioning seems to fix the issue at times.

Expected result
-----------------------
AOE happens

Actual result
-------------------
AOE doesn't happen

Which Server(s)?
------------------------
I've noticed it on distant shores, it happened to me on Surface as well lately.

Gaming Platform(s)?
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PC

[-XXX-]

I've been noticing this to be an issue for quite some time now (even pre EE).

From what I can tell, this seems to be mostly tilset dependant - AoEs seem to occassionally have trouble registering viable targets that do not have hit boxes placed on the same level. This mostly (but not exclusively) occurs on ramps and some of the newer tilsets that have a more diversly shaped terrain.
I can confirm that this concerns all AoE based spells - fireball, NE burst, fear, WoB, mass haste - you name it.

[Party in the forest at midnight]

It's especially bad in the caves tileset, like the Guldorand coal mine. The problem is fairly recent too, I only started noticing it since the last Beamdog patch where they entirely broke some other things. I'm not sure if this is something the team here can fix.

[godhand-]

i've noticed it alot this past week..... its actually not happened to me in a while but i've noticed specifically with curse songs this week my curse songs aren't hitting anything.
I know for the last month all my curse songs have been pretty damned successful and something seems to have changed. Even falaters flute doesn't hit

[Morgy]

Still get this quite a lot with curse song, even the base curse song. Often targets are missed and the song must be cast twice. The variations are much, much worse still.

[Lexx]

Can also confirm this is still happening on the daily on various characters.