Browser Plugin Auto Text Expander Problems

Dear community,

I have some problems with the browser plugin auto text expander.
It works until yesterday, but now when I use my shortcut textsnippets I get always an @ sign where usually a new line starts

Example - this is how it looks before:

textsnippet 1 textsnippet ...
textsnippet 2 textsnippet ...

Cheers,
Dave

and this is how it looks now:
textsnippet 1 textsnippet ...@@textsnippet 2 textsnippet ...@@Cheers,@Dave

Any ideas