bug(android): `Error: Sorry, the EuroLatin (SIL) Keyboard keyboard for English is not currently available.`

[sentry]

Sentry Issue: KEYMAN-WEB-XS

Error: Sorry, the EuroLatin (SIL) Keyboard keyboard for English is not currently available.
  at None (/data/keymanweb-webview.js:5074:44)
  at None (/data/keyman-sentry.js:4643:19)

I experienced this on my phone opening the Keyman app. It popped the usual toast of 'error in keyboard'

Looks to be new arising from #16146

[ermshiperete]

I wonder if this is related to #16180

[mcdurdin]

Suggest ensuring inner exception detail is propagated to the outer exception as a starting point.