I do not know if it’s intentional, but I noticed a huge difference in track width and DP-gap between the Ethernet tracks and these HDMI pairs.
When I go to PCB Editor / File / Board Setup / Design Rules / Net Classes and set the Filter Nets to filter for “HDMI”, then I see:
All net names with “HDMI” are set to the default net class, even though you have made a net class for “HDMI / USB DP”.
Just to make the huge difference even more clear, I used Assign Net Class, selected New net class “HDMI/USB DP” and clicked on Assign To All Listed Nets and routed a part one of the HDMI Pairs.
Because the center lines of the DP-pair are now (much) closer to each other then the pitch of the pads they connect to, the bug does not manifest itself.
I also find the track settings for these net classes extremely thin. 0.0762mm shows as 3mils in those other units.
I had a look at eurocircuits and Aisler and they both have a minimum track width of 0.1mm, and as a rule of thump it’s not recommended to set your design rules to the minimum that a PCB manufacturer can make.
In my experience it’s easy to get lost in actual sizes and proportions when designing a PCB. Is this the case, or are your numbers correct?