Well, I asked this question in 'Map Authoring' but no one answered it
(may be this section is not visited so often

)
I use Final Alert 1.02.
I can create desert, lunar and new urbarn maps (so only YR theatres)
But when I create map in Ra2 theatre (snow, urban, temperat). The editor shows nothing.
If I open arctic map it shows such message:
'This map seems to be corrupt. Do you want to try repairing it? '
Could anyone explain what is the problem?