OS Ubuntu 14.04 up to date

On first run Draftsight 2015 keeps crashing on the accept screen for license agreement.

Error message from terminal:

/opt/dassault-systemes/DraftSight/Linux/DraftSight

QMetaObject::connectSlotsByName: No matching signal for on_help_clicked()QMetaObject::connectSlotsByName: No matching signal for on_help_clicked()QMetaType::registerType: Binary compatibility break -- Size mismatch for type 'QPaintBufferCacheEntry' [1024]. Previously registered size 16, now registering size 0.Aborted (core dumped)

Seems to be a qt related issue?