Noticed strange behavior with Firefox 69.
After clicking on “edit” on some field with type “flexible content”, drop-down select automatically set this field to “text” type. I had this accident yesterday, wanted to add new block to flexible content, but didn’t notice, that it changed flexible content to text.
Tried other browsers – Chrome, Safari, Firefox 68 – all good. Bug exist only in 69 version, on multiple MAC’s. Any ideas?