Drifiting Multicam Clips!

I used Create New Multicam Clip Using Selected Clips...

Then I used Open in Timeline but only the first 7 clips are aligned correctly, and every other clip drifted to the right more than the clip before it:

Is this a bug in Resolve 20b or I am missing something?

Then I used Open in Timeline but only the first 7 clips are aligned correctly, and every other clip drifted to the right more than the clip before it:

Is this a bug in Resolve 20b or I am missing something?