"category" drop down doesn't work

Hello,

I'm using Dynamic AX mobile app for expenses on my Android 8.1.0 Pixel XL. When I click on "new expenses" then go to "category" there's no drop down items (which there should be). It just shows "none." Anyone knows a work around and or a way to correct this so the drop down list shows up under "category"? 

Thank you for your willingness to help ahead of time.