It's mostly safe in a current save but to get better results a new game is the best choice.
You can find in the folder
02 USSEP Custom Patch
all the patches I used, this help me keep tracks of the changes I made.
(there are more vanilla fixes I didn't mention for example the fixes for repentance (Illia quest).
Here is my custom
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I think I have already posted this in these forum.
CC Fishing is a badly scripted mod that introduce a lot of suspended stacks in the game. It's recommended to use the mod "
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" from nexus site.
This is a progressive work of several years and bring a rock solide stability in SSE 1.5.97.
Installation instructions of Unofficial Skyrim Special Edition Patch v4-2-9a -Bain:
1. Check both folders
00 Core (
original USSEP 4.2.9a)
and
02 USSEP Custom Patch
2. Folder 02 is for documentation and contains the custom patches used.