When selecting the Zaishen Mission link today (3/1/2026) it takes you to the page https://wiki.guildwars.com/wiki/Dervish instead of https://wiki.guildwars.com/wiki/D%27Alessio_Seaboard.
I suspect this is due to the name of the mission having ' in it.
Edit: When hovering over the link it shows the expected target to be https://wiki.guildwars.com/wiki/D