`Page could not be translated` message rendered when switching between supported languages in the Brave translate extension bubble

Description

Steps to Reproduce

1. Install 1.43.54
2. open brave://flags/#brave-translate-go and select Enabled
3. relaunch the browser
4. view a site in one of the supported languages German - https://www.faz.net/
5. click Brave translate extension in the URL bar
6. click Choose another language in the hamburger menu in the bubble
7. select Portuguese and click translate

Actual result:

This page could not be translated message displayed

Expected result:

This page could not be translated message should not be rendered. Page should be translated as per the selection of the language.

Reproduces how often:

Intermittently (got this error twice for Hindi and Portuguese)

Brave version (brave://version info)

Brave	1.43.54 Chromium: 104.0.5112.69 (Official Build) beta (64-bit)
Revision	7ce2902023c722af8564068e6b26e934b83fd774-refs/branch-heads/5112@{#1213}
OS	Windows 11 Version 21H2 (Build 22000.856)

Version/Channel Information:

• Can you reproduce this issue with the current release? n/a
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the nightly channel? n/a

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Miscellaneous Information:

cc: @rebron @brave/qa-team

[atuchin-m]

@stephendonner https://github.com/brave/brave-browser/issues/24075 is only about the first call to translate. If it is the reason the next attempts should work smooth.

[stephendonner]

There’s definitely a timing/race-condition here, which I meant to mention while verifying https://github.com/brave/brave-browser/issues/24075 - it’s definitely improved (in places) but still around. Sorry for not mentioning that, and thanks for filing, @MadhaviSeelam !