Dell D6000 one monitor stuck at 640x480

[Modena]

I have a Dell XPS13, and 2 x Philips 241S monitors. I used the D6000 successfully for a month with both monitors (and the laptop screen itself) all running at 1920x1080, everything was perfect.

Then after about a month, one of the Philips monitors now only runs at 640x480, and the options to change it in windows are all greyed out. I initially used the Dell drivers (v8.x) I have now gone to DisplayLink drivers v9 in an attempt to fix this, but no change - still stuck at 640x480.

The one that is having the problem is DVI-D to HDMI on the dock.
The working monitor is displayport cable.

Kindly assist please in how to fix this, it is hugely annoying and can't do what I need to do with 1 monitor down!

Logs are attached