Issues with MC-Fixtures

Hello fellow programmers and dear people at ETC,
I have a strange marking behaviour with auto-mark wich is MC related I think.
I have Mac Quantums that I want to mark positions but not color. I thought it's no big deal as I just have to give a hard value to the color which is different to it's value in the cue before the one they are marking in.
In blind this looks good but in live they are marking anyway.
What's happening here?
Another problem I do have with MC fixtures is a combination of recall-from and next/last.
Let's say 701&702 are both VL1ks and I have 702 in the commandline and want to recall from 701 I type "recall-from_last" but will get "702_recall from_1"
It´s happening on 3.0.1 and the Quantums are the "Mac Quantum Wash Extended MC Extra Cell"
which come from the 3.0 library November 2020.
The next/last thing seems to happen with every MC fixture.
I know how to work around it but I'd love to learn if this is a bug or if there's a proper way to do this.

TIA

P.S.: In the attached pictures it's cue 570 where the marking shouldn't happen.


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