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.
1.4 will bring many changes to the PC version. We strongly advise making plans to back up your worlds and players prior to updating your game. More details here.
Begin your search for Journey's End information here and here. Please report bugs and issues for Journey's End here.
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.
Given that your post is a search for other builders and not one that showcases your creations, it is more suited to your own profile. Threads in this section are for displaying creations, so if you’re looking to work with other builders it would be a good idea to present your builds here. It’s hard for others to want to become involved and join in on a discussion without seeing your own dedication and work. How do you hope to grow builders? How do you want to inspire builders? What foundation can you offer to set the stage for a more flourishing discussion?