Issues with ACF Pro (translation lost)

Hello, Dear Developer!

I have problems with plugin. It has a bug with traslation in ACF Pro fields. The plugin does not save the traslation for current language, and uses translations from default language (from the 1st language-tab).

The bug appeares not everytime when I change my content, But sometimes. But It makes using the plugin inpossible((

WP version: 5.5.3, Custom Theme, ACF Pro version – 5.9.3