Details: When the Browser’s language translation setting is turned on and if user opts for translation, the contents of the Text element is also translated. The contents of Text element might be auto saved in the translated language.
To revert the content back, open the affected Text Section in Full Size and click on the History button as shown in screenshot below:
In the History tab, go to the appropriate row and click on Compare with Previous Version. Click on Revert to this revision icon to revert the change as shown in screenshot below: