I cannot add a new field to and existing form in v4 but I can in v3

I am trying to add a new field into my existing forms and it won't let me place the field in the section I would like it to appear.  This happens when using the latest version of Jotform.  It appears to be working in JotForm 3.0. 

Hi, thank you for contacting us.

Could you please provide us with the form ID so that we can try to replicate the issue, and escalate it accordingly?

Thank you in advance. We are awaiting your reply.

Hi Yes, however I went back to Jotform 3.0 and have since corrected the issue.  Here are links to both the original form and a copy of that form that I have been working in that would not allow me to add a new field in the section of the form that I would like it to appear.  https://form.jotform.com/70165208587965 and https://form.jotform.com/50364160294148  

I cloned both form to test and was able to add fields to both in V4.  I am not sure what is causing the issue.

In any case, the easiest way I have seen to add fields where I want, especially on mobile, is to tap or click on the field in the form that you want to place the new field after.  Then, tap or click on the new field from the column on the left, instead of dragging the field.  It will insert the new field directly after the currently selected field.