A short honeymoon with the Erfurt

[alanint]

Almost certainly it is the small plunger/disconnector in the sear bar, which is not resetting. Leaving the pistol unable to fire another round. Look carefully at the sear bar and see if the small plunger at the front is moving freely. A bit of cleaning and polish to this and the "L" shaped trigger connecting bar's upper face may rectify the problem.