Reading the release notes for 49 (android) I'm very glad to see there are some planned improvements for offline usage.
I tried those out, though, with Airplane-mode enabled, and am not seeing it yet…
- When opening an insights panel (either as a sidebar, or word popover) all tiles take a while to load, after which they consistently return an error and 'try again'-option
- The preferred dictionaries, for word info, are available offline, so they 'should work'
Did I misinterpret the release notes, and / or can I be of help debugging?