Hello Igor, first of all I can't thank you enough for this awesome software!
I was having an issue with a set of dice I had made a few months ago, I went to update them with some new custom faces using 0.4.2 but it would not load the PNG properly, I tried tweaking settings but could not find a fix. I ended up having to load the files with an older version of dicemaker in order to get the PNG's imported properly
Please let me know if there is some way to fix this, again thank you for being awesome!