I’ll explain step by step. I have two languages PL and ENG.
I’m in post in Text mode PL
Add media-> select image and press button add in to the post-> then PL editor is empty without html tags but this html tags is in ENG text and visual editor.
I’m in post in Text mode ENG
Add media-> select image and press button add in to the post-> then ENG editor is empty without html tags but this html tags is in PL text and visual editor.
Visual editor is working fine.