Wendy: Every Witch Way - question

https://www.lukiegames.com/assets/im...y_p_cofhzi.jpg

Picture for the reference/attention/because the thread looks better with it. :Elmy:

I've got some issues with running this game on Visual Boy Advance. When the level starts, the main character can't be seen, as if she's invisible. When I press jump, she can be briefly seen at the top of her jump, but as soon as she falls she becomes invisible again. Same goes for the items and enemies. I tinkered with the video options (all layers are turned on), I tried both the older versions and the latest one, but no success. I also googled but didn't find anything useful. Anyone else experienced this? (It's not that big deal, I can play it on mGBA, but still, kinda surprises me that it doesn't display properly on VBA. And it's not a sole case; I've also had some similar issues with the game The Simpsons: Night of the Living Treehouse of Horror.) Any advice?

P.S. When I run the game in the GBA mode and play the GBA-exclusive bonus levels, the characters are displayed fine, but the game is going a little slower and the GUI can't be seen; well, actually, it's only seen for a split second when I press pause.