Dropdown shows different ordering in Preview Vs. on Mobile

[G-RM]

Hi,
I'm struggling with my app ordering of a dropdown menu. On the builder and preview screens it orders the dropdown as I want, but when I view my app on my phone via the Appsheet app, it orders this list randomly.

Does anyone know why and what I can do to fix this, or better yet tell me a solution for custom ordering?
I don't simply want the list to be alphabetical, but in a specific order. 

Many thanks.

[jaichith]

Try clear cache, force sync the app. Do you use any expressions for the dropdown ? 

[G-RM]

Hi, that's for your reply.

I tried clearing the cache (I'm using Appsheet on Android, and cleared it via the storage section of the app info). That didn't help unfortunately.
There is no expression for that dropdown. Its type is set as a ref.