Edit history, flags and ratings lost after upgrading catalogue

[#1]

My edits, edit history, flags, and ratings are gone after upgrading my catalogue. Help!!!

[#2]

My edits, edit history, flags, and ratings are gone after upgrading my catalogue. Help!!!

[#3]

Please provide the following information:

• version NUMBER of Lightroom Classic
• version NUMBER of your operating system
• the exact steps you followed to do the upgrade, step-by-step, leaving nothing out

[#4]

You will still have the original catalog. I suggest you duplicate it before you proceed forward.

[#5]

following