For issues you find with the Switch and Console releases, please follow this link and give as much detail as possible. This is the speediest way to get info to Pipeworks and get a hotfix in the works.
For issues you find with the Mobile 1.3 update, please follow this link and give as much detail as possible. This is the speediest way to get info to DR Studios to look at your issue. Also, some troubleshooting hints here.
I have a question about the Creator Compendium. What exactly are the specifics on submitting music? Does the selection of music include your own remixes or arrangements of existing Terraria songs, or is it for original songs created to fit the style? I understand that the song must be created by the user or group of users that submit it, but the type of content the song includes is vague.