Quad SDI Card and Missing VANC Lines

Hello, during development we noticed that some VANC lines are missing.

The Card receives 10bit PAL with various VANC lines.
There is data in lines
7-15,
20-22 und
320-328, (32-40)
333-335 (45-47)

But the card only recognizes data in lines
8-14
20-22
33-40 (321-328)
45-47 (333-335)

=> data is missing in lines 7 and 32 (320).
This data is missing when parsing the data from the filter and when viewing the pins output preview.
We tried to Capture the lines 7-9 and 31-33 with the "Capture to movie file line 1-3" Feature in the Blackmagic Design Control Panel. But those lines are empty there too.
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We checked the input data with a Dektec-2144 card and there the lines appear, so we are100% sure that there is data in the signal.

We are using the most current driver Version 10.3.5.

With these facts we guess that there might be a driver/filter problem.
Can anyone approve?

When can this problem get a fix?

Best regards
Christoph Krause

//Edit:
The Same problem appears with the Decklink duo

I took some time to access the lines directly via the api.

Same result.
line 7 and line 320 which should have data are empty

Api Version: 10.1.1

[Yoshan Atukorale]

Hi Christoph,

The VANC lines below the digital switching point (line 8) and other switching points, such as the field 2 switching point (line 320) will not be captured.

To access the full range of valid VANC lines in frame, you could try using a card from the DeckLink Extreme series, such as a DeckLink 4K Extreme.

cheers

Could i get the same problem with HD-SDI when capturing SMPTE2031?
And are there also driver issus?

Thanks,
Florian