Add troubleshooting step

Author: Renat0Ribeir0

content/Software Support/IDE Settings/Change-the-language-in-Arduino-IDE.md

@@ -47,14 +47,23 @@ Alternatively, you can edit the `preferences.txt` file directly.
 
 ---
 
-## If the language isn't changing
+## Troubleshooting
+
+### If some text is not translated
+
+Arduino IDE translations have been made through community contributions, and not all of them are complete. You can see the status of each language at **Transifex**:
+
+* [Arduino IDE 1 translation project](https://www.transifex.com/mbanzi/arduino-ide-15/)
+* [Arduino IDE 2 translation project](https://www.transifex.com/arduino-1/ide2/)
+
+> Note that some messages printed in the "Output" view are generated by 3rd party compilation and upload tools (e.g. AVRDUDE) and modifying the language preferences in IDE will not affect these.
+
+### If the language isn't changing
 
 Make sure you fully restart Arduino IDE. On macOS, closing all windows will not automatically quit the application. If the Arduino IDE icon is in the Dock with a small dot below it, the app is still running. Right-click on the icon and select _Quit_ to quit the app.
 
 ![Quitting Arduino IDE in the Dock on macOS.](img/macos-ide-quit.png)
 
-Note that some messages printed in the "Output" view are generated by 3rd party compilation and upload tools (e.g. AVRDUDE) and modifying the language preferences in IDE will not affect these.
-
 <p style="display:none;">
   Tags: sprache, idioma, Español, Deutsch, Italiano  (Italian), Português, Arabic, Euskara (Basque), Chinese (汉语/漢語), Čeština (Czech), Dutch, Persian, Turkish, Armenian, Bulgarian , English, French, German, Greek, Hungarian, Italian, 日本語 (Japanese), 한국어 (Korean), Norwegian Bokmål, Polish, Portuguese, Limba română (Romanian), Russian, Slovenčina (Slovak), Slovenian ,Spanish ,Ukrainian ,Vietnamese, Eesti keel (Estonian)
 </p>