Error with editor plugin

Hello,
when I try to add some photos I got this Error:
Cannot display editor, no editor plugin enabled.
But I have plugins enabled: Editor - JCE and Editor - Codemirror
If I enable editor - TinyMCE, it start working and there is no error, but Im not using TinyMCE
So there is some problem when Showtime can work only with TinyMCE, but nothing else..

I can not send admin login, because my site is not livesite now, it is in preparations on localhost.
But this problem appears also on clean joomla + showtime image gallery + JCE, when I disable TinyMCE editor plugin. Can you try it?

Yes I have selected editor both in Global config and user settings. This is situation again:
I install clean Joomla, JCE and Showtime image gallery. Then I select JCE as editor in Global configuration and then I disable TinyMCE plugin. Now Showtime give me: Error - Unable to display an editor because no editor plugin is published. All other components show JCE editor normally.
Next strange thing:
Now when I enable TinyMCE plugin, but in configuration is still JCE, Showtime works, but display TinyMCE instead of JCE.

Ok, but I think it should work also with another editor like JCE too.