Revenant Ventari Tablet moving below the ground

The tablet doesnt move to higher ground on some places in WvW. I’m pretty sure that the same thing happens in PvE aswell, only that I never use it in PvE.

The ventari tablet is moving through structures instead of onto them as seen in the video. https://youtu.be/UWAtr_gzMY0Locations where this happens:

• Blue keep EB water gate
• Quentin Lake Tower EB, water-way on the side of Danelon Mine. When Casting the tablet in the water, and moving it up the hill to the passage to Danelon Mine, the tablet will disappear in the ground still on water level. You have to loose the tablet or switch legends to get the tablet back on high ground.