"Blank" post and pages after WP 5.0.3 update

Hello team,
finally I tried to update Enfold last version to WP 5.0.3 version.
But even if I installed classic editor plugin, nothing is working in the editor.
I can’t edit the existing ones because I can’t see the text. The html text is there but it is white in the blank background. So I can’t see it without passing the mouse over it.
I can’t create a new one.
There are also a lot of issues envolving WP general functioning. I can’t disable or activate plugins for example.
I tried to disable some plugins as Autoptimize, Shortpixel and WP fastest cache but nothing changes.
I restored the previous WP version 4.9.8.
Any guess to help me?
Thanks a lot.
UPDATE: I disabled YOAST SEO plugin and the issue is partially solved. But to see my post in Visual editor I have to click in Text editor and then turn to Visual. Otherwise I can’t see it. Am I missing something?

• This topic was modified 5 years, 9 months ago by turistai.