There has been some issues in the past, but using the latest version seems to work…  We did have one user where the fusion builder js was throwing a bunch of errors on their site… but they never came back…  what is that?  is it needed on the front end?  on the actual forum page?

its possible that their fusion builder uses bootstrap js too…  which is known to conflict with the jquery ui js library that comes with wp…  they can work, you just have to make sure jquery ui is loaded after bootstrap which too many plugin/theme authors that bundle bootstrap seem to forget…

do you have link to your site?

Hi there. I sent you pm with all the details on there. Didn’t want to be giving out info (password etc.) on the forum

Well – you have two problems that could do with fixing. When fixed there may be other things but these are unknown now until the first ones are dealt with. So…

Something – probably do do with the theme – is running some sort of non-standard tooltips code that is fighting with the WP supported jQuery Tooltips that the forum uses. Go to your theme (I see it is a child theme) and open the spFunctions.php file in the /templates folder. At the top is the option to turn the ‘fancy’ tooltips off. Change the true to false and save. Clear your browser cache and see what happens.

Something – either theme or plugin – is also loading the BootStrap script library. Again this is not supported by WP and tends to fight with the properly supported jQuery UI library. This is most noticeable in the SP file uploader plugin where the ‘add files’ button ceases to work.

IF you have this problem then the key to this is ensuring the BootStrap loads BEFORE jQuery UI. The WPEngine folks may be able to help or advise on doing this as I see you are loading these scripts from their repository.