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.
What's the Weirdest Thing to Happen to You in Terraria?
Probably the strangest thing that happened to me (mobile):
I was fighting Plantera with my Paladin's Hammer and when it reached max range, the game lagged so much the hammer was stuck but is registered as a projectile, and I could have 2 hammers out. I just kited Plantera onto the hammer and pretty much waited until she/it dies.
So, I was on my phone playing when I found a drax in a shadow chest pre hard mode. Already weird but then once I had finished wof I got vibrations from deep below, air colder around you, and terrible night all in the same night. Fittingly, terrible night was the last one. So that was fun. Beam sword vs all 3 mech bosses on 2nd hard mode night