I was walking around the demo, trying to just see around and test things... and noticed a guy over the trees.
Now, I know it isn't really reachable, but I was on playtest with a ctrl that allows me to reach there... so I did.
He used a balloon when talking... and there shows the problem.
Turning the map around shows that balloons only appear where there are other objects. where there is only the parallax, the balloon is cut off.
Animations don't seem to have that, but...
You may notice how only the third and fourth ones are being affected... so, it seems ballons have it all the time, but events, or at least player and followers, are just when they are walking on the bush tiles (the ones that make the legs transparent).
I then turned off the patron plugin.
These issues were removed.
I
think the problem may be with alpha fog, at least it makes sense it would be.