Using new Corona Build 1.01 and Corona Converter i found some limitations and inconvenience.
1/The script Corona Converter 1.12 ignores map channel for UVW in textures.
(if i have texture with map channel NOT 1)
2/I have not using Crop/Place option in texture same in Standart 3dmax Bitmap, because CoronaBitmap has no button View Image in textures options, and cropping process some difficult.
3/PSD photoshop format not supported.
Hmm, working absolutely fine here. Can you elaborate under which circumstances it happens? (or share a scene with 1 map in it)
added all except for psd, we will investigate if it is possible