(Green is the player, Red is Jumpthru, blue is how the movement goes)
Also, having a Player colliding with multiple jumpsdowns that are sloped causes glitches (But can't blame the behaviour from 'behaving' weird (lol) as it's getting confused from handling multiple Jumpthrus)
When it does this, it causes the behaviour to think it's not on the ground, though it is not actually falling towards ground, therefore you cannot jump ect.
The new update has introduced something that's all over my project, where I have solids and Jumpthrus close together, the character does the "Floaty falling" thing like the previous bug, just from walking along the solid into the side of the jumpthru.
(Orange is solid)
I've bug reported just one bug (one I haven't mentioned here) as I believe some of these thing I experience may just be because I have a tall Player, and I may attempt to change it round so he's like 4x4px (I've tried it quickly and gives a lot less hassle with the jumpthrus) Except most of my project is based around using the Players size for gameplay collisions like fighting. Life choices.