Using Bambu dual silk without shredding?

I think that the filament is eliptical and that’s why it doesn’t work. I thought it might only affect the A1 so I’m interested to hear that it seems to be unprintable on an X1C as well.

Are you able to measure the filament cross section with calipers please? And post the smallest and the largest numbers (should be at 90 degress to each other)?

Here is the thread about problems with this filament on the A1: