Most of my folders disappeared...

Question

I connect my phone to my computer and I see "XT1032" show up under Devices and Drives. When I open that device, I see a folder for "Internal Storage".  I open that folder, where I used to see many folders, I see only "DCIM" and "Pictures".  "DCIM" folder contains a few pictures from my camera and "Pictures" folder contains the one picture I use on my phone desktop.

I don't recall what other folders used to be there or when/how they disappeared but I used to go into Documents and see copies of all the word files I have created in the phone.  3/22/19 was the last time I was able to copy the documents folder from my phone to my computer.  Everything, including those word documents work when I access them from the phone.

Does anyone have any suggestions to what has happened? 
Any suggestions as to how I can diagnose this?

Em Erogork · Accepted Answer

Interesting enough, the problem disappeared and the phone has worked as expected ever since. At the moment, I do not see any option to mark this as solved.

I just changed over to the Moto e6.

James Watson · Answer

When you had your phone connected to the PC via USB cable, there should be a pop-up window, Use USB for, on the phone. There you must have selected 'Photo transfer(PTP)' other than 'File transfers'.

Em Erogork · Answer

Yes, this is probably the solution.  I believe I have seen that option.  
How do I get it to show? Will it be on the phone or on the computer?

James Watson · Answer

Everytime you connect your phone to computer with the USB cable, an option window will be shown on the phone.

Em Erogork · Answer

Lately it has not shown.  I have seen it before but not today.
Maybe I switched if off somewhere/somehow...