Not sure why you opt to use external host.. MEGA is extremely annoying to deal with on mobile devices lately unfortunately
Then I'll be friendly and add a local download too ^^ didn't know it was bad sry.
When file gets too big, MEGA forces you to download the app so.
Sorry for bothering you.
I have ran into this same issue in the past.
For future reference, as a workaround you can go to the ellipsis on your mobile browser and select 'Desktop Site'.