Show / Hide all markers not working correctly

First of all, many thanks for this great plugin! It's a real piece of art.

All right, on with my problem; My Show/Hide markers buttons are giving me Javascript errors. I tried re-installing the component but it doesn't seem to help. It's giving me the following errors when I click on them:

Uncaught TypeError: af.addClass is not a function
zhgmMapObjectManager.GroupStateShow @ objectmanager-min.js:11
zhgmMapObjectManager.GroupStateToggle @ objectmanager-min.js:11
callToggleGroup @ (index):8227onclick @ (index):1

When a button is clicked it's only showing/hiding one group at a time. I have to click multiple times to get all markers back on the map.

Does anyone have any clue what to do about this? Any help would be much appreciated!

Hi

Look at my docs.

wiki.zhuk.cc/index.php?title=Zh_GoogleMa...ss_is_not_a_function