DIP Switch 4,5,6,8,14 all ON, which is Switch = 8376, was invalid but was being allowed.

The configuration resulted in four presses and six gags.

In this configuration the Press 3 boost output was Clobbering the Stacker output. The configuration was fixed by eliminating one gag output. This shifts up the Press Up and Press Boost outputs up by one so that the Stacker output and the last press no longer attempt to use the same output.