I installed all my mods using Wrye Bash.
Now I install NMM in order to easily check for new versions of my mods and download them to the wrye bash installers folder.

However, starting up NMM, almost all mods have yellow exclamation marks and most mods doesnt have version info next to them. Why is that?
When I previously, only used NMM, it was all fine.

Did you change the file name of your mods?