yes there is. you open them in a text editor and change the version number to 1 instead of 0.

Example

TXT
versionNumber 1

instead of

TXT
versionNumber 0

It is the 2nd line down :3

Note: you got to do this to every map.

don't know then, honestly the patch was not really ready to be released IMO, still a few tweaks needed here and there, anyhow, you try switching it to 0 and then back to 1 or something similar. worse comes to worse, take some of the custom map data and try applying it to the default maps

Ex, change default map data with:

TXT
versionNumber 1
isBrowsable TRUE
browsePictureName "ScenarioPicture-UserGenerated"
browseName "IDS_CUSTOMGALAXY_NAME_USERGENERATED"
browseDescription "IDS_CUSTOMGALAXY_DESCRIPTION_USERGENERATED"
isFirstCapitalShipIsFlagship TRUE
planetArtifactDensity 0.150000
planetBonusDensity .400000
homePlanetUpgradeLevel:Population 3
homePlanetUpgradeLevel:CivilianModules 4
homePlanetUpgradeLevel:TacticalModules 0
homePlanetUpgradeLevel:Home 1
homePlanetUpgradeLevel:ArtifactLevel 10
homePlanetUpgradeLevel:Infrastructure 2

Mind you i haven't tried this so its pure theoretical, but something is better than nothing.

*chuckle* i deleted em all, i prefer custom made maps anyhow (ones i make myself and then modified in notepad). if my last post does not work, then best to just wait for a dev, i would have tried posting this in technical or general forums also since its the default maps that are not working, not custom made maps.

Edit: Actually, that was before i reinstalled the game, you could try the tec forum fist if you want or you could also try reinstalling with NO mods (mods made for 1.2 WILL crash the game). so you can try a fresh reinstall and update again and see if you get any progress.