[Marcelo Ragone]

Hi:

Same thing happenning here. And I SOLVE it . (FCPX 10.2.3)

– I create another event.

– Reimport the missing files (camera files in my case). Wait until background tasks finish.

Is weird, but at that moment the original event, where there was missing files, is working. Even that there are some missing files warning marks on browser window.

– On the new temporary event reimport the files (file -> import -> reimport from camera / archive). Wait again.

Now everything works fine for me. No missing marks. You could even delete the temporary event. Also If you open the library you could see how the files are now in the Original Media folder

Thanks to everybody for the help.

Hola from Buenos Aires.