HI..My isp roundcube email provider is yourlink.ca. They currently use Roundcube Webmail 1.1.3. I reported this issure to them about 2 weeks ago, but have not heard from them since. Clicking on Settings, Preferences, mailbox view..and UNCHECKING "show preview pane" causes a "loading" box to show, but does nothing. Clicking the "save" button also does nothing. It appears that it is hung. If I relog in, the box is still checked.
I post this strictly as information, and do not expect any help. That said; if you do not know there is a problem, you cannot be expected to fix it.
Best regards,
Bob