Hi @Artby3ssay,
We understand the issue you're having with the screen mirroring feature, and we apologize for this experience.
May we know what specific mobile model you currently have? Also, does this issue occur on all of your Roku devices? Lastly, are both devices connected to the same network? as network issues may hinder the user from performing screen mirroring.
Please keep us informed so we can continue assisting.
Sincerely,
Janadee
Nadee K.
Roku Community Moderator