Hello Ernest,
I placed your file in the Ajax Search pro plugin folder and synchronized with the French file in locotranslate.
The problem remains the same, I attach two screenshots, in the custom directory not to overwrite the file at the next update, it does not work.
On the other hand in the Ajax Search Pro plugin directory, it works normally.
I hope I have applied the procedure correctly, if not tell me how I should proceed 🙂
I will send you this week end, the screenshots concerning the channels that are not considered in the current state.
Best.
Domi