Import from Animate to After Effects not working correctly

Hi I am new to Animate and have had an issue with importing my file to After Effects.

I followed this guide: https://helpx.adobe.com/animate/how-to/animate-to-after-effects.html?scid=5e412cd9-babf-46c5-8d56-b3d6f6e71f72&mv=social&mv2=owned_social

Most of the animation works fine in After Effects however I have several graphic symbols that will not play in After Effects and only show the first frame.

Apologies if there is something obvious that I am missing.

Thanks.