Hello Sankos,
you are right. Part of the problem can really be solved by disabling automatic black level subtraction. But only part of it unfortunately. I’ve decompiled the Adobe Std dcp using dcptool, disabled the automatic black level subtraction (i.e., setting the “DefaultBlackRender” tag from 0 (Auto) to 1 (disabled), and compiled it back to dcp. Compare the results to the previous screenshot:
Still some clipping, but certainly less.