Pngout seems to cause certain problems on certain handsets…
I had a crash problem on a Sharp GX15, I finally traced this back to a crash when one PNG was loaded. I reverted back to the original version of this (not running it through conpng) and it worked. I have had similar problems on a couple of other handsets and reverting back to an original graphic always works.
It is obviously only certain png files that are affected, has anyone else has similar problems? Does anyone know what the problem is?
I've seen it happen a few times too. I never bothered to really looked into what exactly was causing the problems, but it looks like some phones are more strict as to what parts of the png format can be taken out, and certain png compressor's on certain compression levels just take out too much.