The TIS Editor is run in Microsoft Internet Explorer. In newer versions IE needs to be run in the compatibility view. Add the current server to the settings.
Enable downloads
Some browser settings may prevent the download of data. To enable functionality of TIS that requires download, e.g., export of projects, change your security settings.
ENGLISH: Enable automatic prompt for download GERMAN: Aktivieren Eingabeaufaufforderung für Dateidownloads