Has anyone run into issues inserting @mentions into cast text at the right position?

Some of our insertions work correctly, others fail. We believe it's due to how warpcast is counting the length of emojis. 

Any tips?

𝓵𝓲𝓿𝓲𝓷𝓰 𝓽𝓱𝓮 𝓮𝓷𝓭𝓵𝓮𝓼𝓼 𝓼𝓾𝓶𝓶𝓮𝓻 • building @buoy 🛟 • @dawnpatrol • pfista.com

building /neynar 🪐 | neynar.com | /rish 

Yep, I tried tagging some peeps the other day and could only do it on mobile app.

Guess we are just early