In FCP7 I used a “Y/C Delay” filter (part of “AJW’s FCP filters”) in order to re-align the colour signal on a project I am restoring. (Sadly - no access to the original tape)
As an example of the problem -
You can see above how the colour layer has shifted to the right - most obvious on the red “DANGER!” - that shouldn’t have a “drop shadow”.
The filter let you move the colour up / down left / right until it was back in the correct position.
Is there an option to achieve this result in FCPX?
I gather filters from FCP7 do not simply plug n play with FCPX…