Problems with EOS camera in a sequence

At a friend location we have SGP 2.6.0.25 just running. The first SGP installation. Everything works fine only the sequence is quickly finished without taking any image as specified.

Running SGP using ASCOM simulators all works fine. The image is taken from the ASCOM simulator. After applying the EOS profile to the same sequence, the step to take an image is ignored and the sequence is finished in maybe 10 seconds. No error messages.

However in the focus menu of the “control panel” it is possible to take images with the very same camera. So why is the software able to take EOS focus images but not EOS images in the sequence? Any idea what is causing this problem?