Hello!
Currently when you export as PNG, the files are named name0, name1, name2,...,name14,name15, etc., but this give some trouble importing them into other software. Other programs will not always import them in the right order, because of the way of numbering - instead it will be like name0, name1, name 10, name11, etc..
I believe it can be fixed by making the number of digits the same for every image, so that it will be name01 instead of name1, and so on Or, if you have more than 100 frames it should be 001.
I have seen this import problem in both GameMaker: Studio and Hitfilm 2 Express (image sequences).
Best regards
Simon