custom bin for - effects is missing in premiere pro 2021 - windows

Generally speaking at every given turn I'm looking to save presets, etc - to an external ssd - I like the idea of taken the power back from the cloud and from the seemingly random and deeply concealed recessess of my system and having them all in one simple location - so that I can throw my computer off the balcony, be flying 5 miles high,  and still be able to have a nice predictable workflow - Adobe let's make it easy (perhaps an option with a popup window that tells you were something will be stored and asks you if you'd instead like to store it to a simple offline location is a worth considering (for everything under the sun that will be stored somewhere) - similar to how you designate - your cache, and autosaves etc. Maybe there is a way to do this in project settings already that I don't know of.

Same problem here, I put a bunch of time into a custom bin folder with presets to settings that I use all the time. After the recent upgrade, the entire bin is missing. Super bummed this happened. I can't seem to find where they are saved to restore it. Hopefully someone knows how to get these back.

I had the same problem, not only that but I also lose all my custom layouts, key commands etc.  the work around I found that works for me is to go to: 

Documents/Adobe/Premiere Pro/14.0

copy the contents of the folder and place it in the most recent install of premiere pro, ie 15.0

Reopen Premiere and you should have all your setting back. 

if you are using One Drive in windows then the path is OneDrive/documents/Adobe/Premiere Pro/14.0

Same here, but this has been happening for years every time there is an upate my custom effects bins vanish and I need to re-create them, there has to be a solution to this.