Debugging loading assets?

Haxe
#1

In html5, in some cases, the loading progress bar reaches about %95 percentage, then it will never get complete.
Where in openfl repo can I debug the code of loading assets?

#2

Which openfl / lime versions you use?

#3

lime: [3.3.0]
openfl: [4.2.0]

#4

Try to use last version from github, it should show error in console