Skeletal mesh is not visible in mobile preview after updating to UE4.21

Hello,

Thanks for the troubleshoot. I was doing somewhat of a similar thing via blender, it is driving me nuts that in previous versions this did not happen and now all of a sudden getting this. I hope a fix will be imminent as I have already made my character and animations and I do not want to go over that procedure again as I am a beginner working alone on my first android game. I am using a plugin that is supported in 4.21 so I cannot downgrade to a lower engine version. Stuck in quite a pickle for which I feel like I cannot do anything. Please if you find a solution, kindly share.

Thank you. .