Bars and Tone HDR PQ on HDMI Blackmagic Video Assist HDR

Hello, I tried to contact the support team via mails but it is a epic fail… So I try on the community forums.

I am running Windows 11 with last version of Premiere Pro v26, I got a Decklink 8K Pro G2 interface and a Blackmagic Video Assist HDR monitor.

I have a project set up for HDR with correct settings, and I am using the "Bars and tone" generator to create a PQ color bars. The sequence settings in Color Management tab indicate "Direct PQ (HDR)" and I have mercury enabled and set to my Blackmagic Decklink 8K Pro to Color Gamut Rec.2020 PQ.

When I display the generated bars it looks correct on the Vectorscope of the Lumetri Scopes (set to Rec.2100 PQ), but on the Vectorscope of the BlackMagic Video Assistm colors seems off (the Video Assist mention that it is receiving Rec.2020 - ST2084 (1000) signal from the HDMI.

A close up of the Video Assist:

Just for testing purpose, if I tried to add a "Full to legal 10 bits" effect on the color bars and the result on the Blackmagic Video Assist is almost perfect… but it is not correct to do that during production…

I am wondering if there is an issue with the range when displaying on an external monitor?

I don’t understand why the 2 different Vecctorscopes are not displaying the same result.

Thank you for your help !