Gdevelop can't display every png files

Hi, I’ve been playing around Gdevelop and discovered that it can’t display every png files. There are two images given below one is before effects the other is after. What is the reason? (it works perfect if the one with effect is jpg but not png with alpa )

GDevelop doesn’t support PNG saved in 8 bits (indexed colors PNG with(out) alpha). But it supports “standard” PNG (24 bits or 32 bits with alpha)

This could be solved in a future updated if we update SFML (the internal rendering engine used by native game and the editor).