Striders are floating above lava

When I was roaming around in my recently updated survival world I noticed that ther were cold striders on lava, but when I got closer I saw that they were actually levitating. after seeing this I leashed them and even sat on one and brought them back to my lite strider port. when they were standing on a solid block, they went back to the normal level. later I found that if they were standing on a certain level (higher block or swam up in lava) they would not get back down.

Edit: I also accidentally shot one and it went up 20 blocks

Steps to Reproduce:
1. put up an elevated surface or a downwards flowing lava stream.
2. spawn a strider and walk off the surface or run into the lava stream (you can also do this by shooting it)

3. you now have a floating strider