selection blind mode / non blind mode. BUG?

Hey Guys

scenario:
I have a cuelist running on cue1 (choosen master).
I want to select all fixtures with color 1 in cue 2 (but cue 2 is NOT running).

in NONE BLIND mode:
i select CUE 2 - COPY - ENTER .... LIVE - COLOR 1 - ENTER

All is good.

in BLIND mode:
i select BLIND - CUE 2 - COPY - ENTER .... LIVE - COLOR 1 - ENTER

Only a few of my expected fixtures are selected.

Is that a bug or am i doing something wrong?

Regards
and happy easter

JayJay