Cannot add element validations

[liga]

After updating, I can no longer add or delete any element validation.
The problem seems to be a javascript error in pluginmanager-min.js:

When adding a validation, a container is displayed, and when selecting the type of validation, e.g. php an exception is thrown:
TypeError: Cannot read property 'getElement' of null

The code trying to get executed is on column 3922:
f.getParent(".actionContainer").getElement("span.pluginTitle").set("text",e)
with f equal to
<select id="jform_validationrule_plugin-0" name="jform[validationrule][plugin][0]" class="inputbox elementtype">
<option value="" selected="selected">Please select</option>
<option value="areuniquevalues">areuniquevalues</option>
<option value="isemail">isemail</option>
<option value="isgreaterorlessthan">isgreaterorlessthan</option>
<option value="notempty">notempty</option>
<option value="php">php</option>
<option value="regex">regex</option>
</select>
and f.getParent(".actionContainer") equal to null

Trying to click on Delete button then gives a null-pointer exception:
b.target.getParent(".actionContainer") is null, but the .dispose() method is called upon it.

I am using Joomla 3.4.0, Fabrik 3.3.1, templae isis in the back-end.
Help!

 

[troester]

I can't replicate.
Did you clear all Joomla and browser cache after updating?
Are you running 3rd party omponents/plugins with JS compression?
Did you enable WYSWIG editor for element labels? If yes, which editor?

You can try to update from GitHub (after backup), there was a change addressing JS loading (because of conflicts with editors).

 

[liga]

The problem persists. However, I tried in a third browser, and there the behaviour is OK.

So:
Using Chromium 41, javascript is OK
Using Firefox 35, the above JS errors occur
Using Opera 29 and 30, the above JS errors occur

I did not update from GitHub: I don't understand git.

 

[troester]

You don't need to understand Git, you just need to
WIKI: Update from GitHub
Fabrik3.1-GitHub