Tabs disappeared after saving the module

Hello,
I am using your extension Tabs GK5. Everytime I'm tryring to save the module after saving the tabs, all tabs were deleted.
I am using Joomla 3.4.3.

Thank you for your help.

I guess I found another way to use this extension with this bug. I saw in other threads, that the tabs are disappearing after making for example 6 tabs, saving every single tab in the form and then the module. As I reproduced this bug it happens after I saved 4 tabs and clicked the save button from the module at the end. But now I found out, that everything works fine if I use content -> module instead of content -> HTML.
Now I have to make every tab as a single empty module with the position "tab 1, 2, 3... etc." but I can live with that. Maybe this works for other ppl too?

Hi

As far as I remember thit bug was fixed already. Are You using the latest version of this module ?