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I would like to note that in the map collection, when sorting by version, nothing changes; only the maps from Erathia are displayed, meaning maps from other expansions are not shown.
There is simply a default filter for Erathia. You need to adjust the filter to a different criterion in the context menu. If you need to select all versions, check the corresponding boxes.
Added after 1 hour 53 minutes
When launching the Paragon map on Heroes Complete, an error occurs, regardless of whether it is launched through the HD mod or the original game.
I checked - I also get a crash! I've reported it to the HD mod developers. Maybe they can offer a solution. I noticed that this map does not crash in HoTa.