Dear Mr Ivo,
About 10 days ago I finished my new web site http://www.chessgambit.net and installed a Animated Counter particle...Everything was working fine, until I noticed today, after installed Gantry 5 update, that Animated Counter count default numbers: 100 (picture in attachment). When I opened Animated Counter module, everything was empty and I fill the required values with button "edit all items" apply and save but again particle count default numbers and everything was empty...

Then I checked is there maybe a Animated Counter update...I download the latest version of the Animated Counter 1.2.1 particle and copy the new files to my installation by overwriting the existing ones. Then I clear the Joomla cache and recompiled baseline CSS.

But I have the same problem...Then I tried to fill the required values with button "add new item" apply and save and everything was ok!
I realized that the problem is when I tried to fill the required values with button "edit all items" which for some reason deletes entered values...