XPS 15 & TB15 dock issues continued...

So after a month of waiting, I finally got the monitor cables and adapters support wanted me to use to match my setup to their lab.

It came a day after new BIOS update.

After updating the BIOS, I started having keyboard and mouse issues, that I didn't have before.

After replacing my cables with Dell supplied ones they shipped me, I still have monitor blanking and all issues before.

I can stop the keyboard and mouse issues by plugging them into my laptop rather than the dock. Kinda defeats the purpose of a dock...

Dell's next solution is to send me a brand new XPS that is a new revision from the one I have. Probably another month wait...

I don't have the issues people say they have with edges not flush or trackpad uneven or coil whine, but if this new one adds those issues, I'm going to be pissed...

Edit: Spelling