Why is the grass in the model not show when I try to export it, how do I resolve that?

I tried doing the same thing in both 2022 and 2023 twinmotion version and the problem still persists.

Hi ,

Would you be able to share a copy of your Twinmotion file? if so, please submit a bug report at https://twinmotionhelp.epicgames.com/s/case-community-page and attach a copy of your project files so our support team can investigate this.

Best,

Raghib