If so then it does not work.

FeignException$InternalServerError: [500 Internal Server Error] during [GET] to [https://prerelease.triplea-game.org/maps/listing] [MapsFeignClient#fetchMapListing(Map)]: [{"code":500,"message":"There was an error processing your request. It has been logged (ID d97cbd373f49b787)."}]

I tried to add the above, but I don't think I'm authorised, but I think its already covered by;
https://github.com/triplea-game/triplea/projects/25#card-74205079

It would be really useful for anyone to check out 2.6 connected to prerelease and give a full list of the items that are not working. This is the place to track those items: https://github.com/triplea-game/triplea/projects/25

@rogercooper 2.6 removes the naming requirement of the map repository relative to any other name.

Before 2.6 the map repository, map folder ,and map name in XML all had to line up (each name was normalized to remove spaces and underscores and spaces, so they could differ by those characters, but otherwise had to be exact matches).

In 2.6 instead of using magic naming to derive paths that had to line up in 3 different locations, instead now the path to find a XML game files is only found from the map.yml files. The name of the parent folders is completely arbitrary now. If you have a map that is working in 2.6 and 2.5, try the experiment of renaming the map folder - it will break in 2.5 but should continue to work in 2.6.

Right now, I am trying to make mods work in both 2.5 & 2.6. Has the downloading problem been fixed in 2.6?

Before 2.6 the map repository, map folder ,and map name in XML all had to line up (each name was normalized to remove spaces and underscores and spaces, so they could differ by those characters, but otherwise had to be exact matches).

In 2.6 instead of using magic naming to derive paths that had to line up in 3 different locations, instead now the path to find a XML game files is only found from the map.yml files. The name of the parent folders is completely arbitrary now. If you have a map that is working in 2.6 and 2.5, try the experiment of renaming the map folder - it will break in 2.5 but should continue to work in 2.6.

But TerraFirma1939 has inconsistencies in its naming structure.

yea RetunRadio got it to work here

https://forums.triplea-game.org/topic/3191/map-missing/6?_=1650167782632

Most of my maps dont have a map folder.

But TerraFirma1939 has inconsistencies in its naming structure.
2.6.663 cannot download it as it does not exist in the downloadable list, you have to use 2.5 to download it.

Also when 2.6 unzips it, I thought the folder name must be all lower case and should match the xml file name and the name="mapName" .

However even when I matched it all up, it still errors.

Its a very big map, I changed vmotion to 4G and also tried the TripleA default, it still errors.

Also tried 2.5 and 2.6, it still errors, so its not the new 2.6 version, its something in the map.

Do I need to have a folder called map?

Yea I'm pretty sure you do. I'd check a few others in downloaded maps and follow what they do.

Terra firma goes straight to this with no "map"

Should look something like

with most that other stuff in map