Linked multipage .ai documents within Illustrator will not be stored properly anymore if linked more than once
When you place another .ai file in Illustrator 23.0.6 more than once and with the linked ai. file containing multiple artboards, it will no longer refer to the chosen specific artboards of that linked .ai file for the different placements but replace them all with just one artboard after saving and reopening your file.
It will replace all the different linked artboards of the one file with the artboard placement which will be most top in layer manager!
place ai. file in open Illustrator document with a specific artboard
place the same ai. file in that open Illustrator file with an additional, different artboard from the linked .ai file
save file
close file
open file againall different placements now show only one, same artboard, in all instances of the multiple-linked .ai file!
What are you doing at Adobe...