Editing in Preview is fit but when assemblying with other videos shrinks down to 1/4 size

[default4smm6e86c613]

I am new to video editing and have strung together a bunch of videos but the last one when put into the sequence shrinks to 1/4 the size.  When I increase the % it affects the entire string of videos.  How do I just adjust the single video without doing the other ones I have strung together.  Thank you. 🙂

[Mohammad.Harb]

are you on windows or Mac ?

is your graphic card up to date ? 

[default4smm6e86c613]

Windows and the video was a clip from an iPhone...

[Ann Bens · Accepted solution]

Make sure your sequence settings match your footage.

Empty your timeline and drag a clip into this empty timeline: it will aske if you want to keep settings or not.

Hit Change Sequence Settings. Now you are good to go.

Best is to learn the basics first.

Saves a lot of aggravation.

Hit the learn tab in the splash screen.

[default4smm6e86c613]

Thank you!  I was able to figure it out with your instructions! 🙂