I recently updated to the newest version of Limesurvey (160725). Everything ran smooth but now when I want to edit some survey settings where a dialog pops up my entire browser screen runs grey and I can't click on anything. The only thing that helps is refreshing the page.
For example, when editing the on/off switch for HTML emails in the survey settings a new pop up comes up telling me that I need to edit my email templates. However, I cannot click on "Close" as the entire screen is greyed out (see attachment).
Does anyone else having a similar problem? Is there any solution? I already deleted the entire limesurvey folder on the webspace and uploaded the new folder without using the old config.php. All plugins are disabled.