the engine issues could be a reason ... but they seem to be resolved now ...
Jun. 18, 2008
Full Head of Steam for Engine Production at THIELERT
Lichtenstein/Saxony, June 18, 2008 – The insolvent Thielert Aircraft Engines GmbH (THIELERT) has resumed full production of aircraft engines. With immediate effect, the company can once again supply the THIELERT Centurion 2.0 engine in large quantities.
Centurion Engines