Deleting large number of rejected photos residing i Smart collection
Recently I went into troubles running LrC 9.4. While reviewing the contents of a Smart collection containing ~150000 photos as collected from a catalog handling ~270000 photos, I rejected some 500-900 photos followed by deleting them. After having repeated this 'reject+delete' action a few times (less than five), LrC stopped working, forcing me to kill it from the outside.
After restarting LrC, I went on rejecting and deleting photos from the same (although slightly smaller) Smart collection for a small number of times until LrC again stopped working, just as described above.
Did I do something 'illegal' (from LrC's point of view)?