Product/Catgegory Sorting disabled (disappeared) after using arrrows

[clubbuilder]

I used to be able to sort my categories by dragging and dropping. But I was playing around and used the down arrow next to the name. When I did that the manual drag-and-drop sort just disappeared. Its has been weeks now, the drag and drop option is gone and I have tried everything. See image.

Any suggestions?

[Nickz]

13 minutes ago, clubbuilder said:

Any suggestions?

Only if you give more details: Version Prestashop, Theme name, Module name for starters. Are you building at in your PC or Server, depending on which the OS. 

[clubbuilder]

Version: 1.7.8.1
Theme: ZOne Theme Version 2.5.9
Modules: I have many of modules (74 of them). None added in the past 6 months that should affect back-office that I am aware of.
Using PC
Browsers: Firefox & Microsoft Edge (Both Latest Versions)

What I do know is I sorted my categories via the drop-down arrow by Name, and after that one sort, the ability to drag and drop to re-organize disappeared completely.

[Nickz]

15 minutes ago, clubbuilder said:

What I do know is I sorted my categories via the drop-down arrow by Name, and after that one sort, the ability to drag and drop to re-organize disappeared completely.

On your PC or a server?

If later than look into the server log files if php has changed.

[clubbuilder]

I access my stores admin panel on my PC.