Oshabi's portal vanished while inside the grove, in a map

Oshabi's portal is gone. I'm inside a map in this image. I did my typical grove business, but when I went to return to the map her portal to do so was gone. I'm unsure exactly when it disappeared, but I'm fairly sure it was there when I initially entered the grove.

I can return to the map by logging out and back in. This still seems like a fairly major issue.