The txAdmin recipe for RedEM-RP 2023 release to get the latest working version.
Use this URL in txAdmin to install RedEM-RP from this recipe: https://raw.githubusercontent.com/RedEM-RP/txAdminRecipe/main/recipe.yaml
This recipe attempts to set your game to rdr3 and your onesync infinity on. If you have issues with game/version/onesync selection, check your txAdmin and set it there.
Make sure you are running the latest FXServer artifact from runtime.fivem.net