About Guild Trek- Yours also bugged?
Our guild has run several successful Guild Treks at Tier 3 and not had any issues. The icons are inset into the ground, so can be hard to see, but we’ve always found them.
As for the locations that are ‘unknown’ on Dulfy, they were ALL unknowkittenome point, people went out and found them. The names of them and the pictures are pretty much all the clue you need.
For example, we got Risewild Hills before it was ‘found’ on Dulfy. Looking at the image made it clear it had ‘sylvari’ influences. We looked at the maps for Caledon, Brisbane, and Bloodtide, and sure enough, there was an area in Bloodtide called Risewild Hills. So our guildie went there, explored around, and found it.
Hope that helps.