Hi, I experience the same problem with Tabby in combination with Tablepress.
Without TablePress Extension: DataTables ColumnFilterWidgets and/or Row Filtering Tabby works fine. But when one of these extensions is activated. Tabby (most of the tiimes) does not work anymore.
You can view an example here http://www.leidenamateurvoetbal.nl/statistieken-lugdunum/
The strange thing is that in some cases it does work: http://www.leidenamateurvoetbal.nl/statistieken-sjz/
Any ideas?