It might be, again, might be due to having not finished the first Walker mission (Oracle) as defined by the coding,.when you exited the game last time.
Where do you spawn when firing up the game?
The dialogue doesn't sound familiar. In fact the XYZ comment is what Nomad states in the intro mission of Breakpoint.
Well, the Only mission in Wildlands with Walker in it is the Skell misison so that must be it. Then again, I am using logic and that's not something Ubi is big on.
I do believe somwewhere in that mission the dialog goes something like that so you may want to heed Mike's warnings and either try to Unpin that mission or perhaps start it and finish it in order to continue.
Plenty of super annoying glitches that even though are not game-breaking they are extremely jarring and it gives you a feeling of nailing someone's sack with a stainless steel bolt to cause as much pain as possible but not to cause any infections.