Guide: How to Fix bugged Solyn/Pre-update world (Terraria WoTG)
*After Permafrosts' Lair it is basically normal progression, feel free to skip to the end. Comment if you have any problems!
DragonLens' Entity selector and ForceConversation option is super helpful for anytime Solyn isn't selectable
DragonLens' Copy structure can help you if Solyn's Compass disappeared or you don't have Permafrosts' Lair
Timestamps:
00:00 Needed Mods
1:04 Spawning/Progressing Solyn
4:55 Kill Cryogen
5:43 Solyn Disappears
6:13 Making New World
7:10 Copying Permafrosts Lair
7:58 Placing in Pre update world
8:10 Spawning Solyn and unstucking her
10:00 Kill Ceaseless Void
11:20 Normal Progression
12:57 Spawn Solyn in the Garden
13:20 No true ending