Mobile Preview rendering translucent object with weird reflective surfaces

Hey guys, I’m a beginner and trying to make a mobile game. So I setup my level and ran it in mobile preview but some of the leaf meshes on my trees are being very reflective for some reason. This problem doesn’t occur in the PC render only on Mobile Preview. I have no idea what is causing this or how to fix it. Please help. Example of both, Mobile Preview and PC render are attached.
Any help would be much appreciated. Thank you.
P.S. And if you have any tips to make the Mobile render look as good as the PC render then please let me know.