Android Mobile App Offline Defect

Android Mobile App Offline Defect

I submitted feedback on this as well, but want to post this here.  We are Zoho Partner testing Zoho Docs for a client's use case.  I'm testing Zoho Docs Mobile Apps on the following Android devices (functionality works perfectly on iOS):

Device 1: 
Samsung Galaxy S9
Android 9.0
Kernel Version 4.9.112
One UI Version 1.0

Device 2: 
Samsung Galaxy S8
Android 8.0
Kernel Version 4.4.78-15104926
Samsung Experience Version 9.0

Here is what is happening:
  • Files were loaded in the WEB/DESKTOP experience
  • Files were synced to the mobile app
  • We manually set files to "offline"
  • We set phone to "airplane mode" and tried manually turning off data
  • EVERYTIME, we get the following error:  "Error in opening file.  Check for network or free some space in your memory
  • We can try this on older versions of Android if we can find one
App settings:
  • Offline Storage: 250MB
  • Cache Storage: Unlimited

Anyone else seeing this?  Works just fine on the latest iOS on an iPhone 6sPlus