This bug has been already reported here : [HTML5 - Openfl 8.9.1 - Lime 7.5.0] Substring error, length < 0
It’s specific to HaxeDevelop, so you should try FlashDevelop instead.
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This bug has been already reported here : [HTML5 - Openfl 8.9.1 - Lime 7.5.0] Substring error, length < 0
It’s specific to HaxeDevelop, so you should try FlashDevelop instead.