@Zkaning It should work on iPhone (what iOS version do you have? I assume you use Safari not Chrome there right?).
Let me know if this works for you: https://codepen.io/maxwroc/pen/yLYvdGe (tap arrow on right bottom side on you iPhone)
Is there anyone else seeing similar problem on iOS?
The folding/unfolding functionality is purely based on CSS selectors and what I see all of them should be supported by mobile safari for a long time. So I’m not sure what might be wrong in your case.
If there are other people experiencing same problem I’ll try to investigate it more.
@Piggyback I think there is some confusion here. I think that @Zkaning was asking about his prev question not about the above screenshot pasted by @crzykidd. In the case from the screenshot there are some entities (caught by include rules from auto-entities card) which have to be excluded by additional filters (in auto-entities card) 
@finity FYI v1.2.0 was released some time ago, just in case you’ve missed it