Change in duration squeezes adjacent image

I am doing a video with a drone elevating as the main timeline. Periodically I will use as a b roll a PS'd camera image on the left side of the screen representing a business market.On the right side I have placed aerial images and have them sequentially replaced at 3 seconds intervals

When I try tp increase the duration of a b roll image the adjacent image is squeezed upward and overlays the prior image.

I sorta understand why it is doing this but I am not sure how to correct this action.

Any help would be appreciated.

Sorry I thought I attached one.
Rich

Could you post a screenshot of your timeline.

That is how connected clips work. If you want the magnetic timeline features, make a new Storyline, which is nothing more than a connected magnetic timeline.

Place your connected clips in the timeline side by side, select them all, right-click and choose "Create New Storyline". Then they're all inside of a storyline that gives you what I think you're looking for.

Thanks for your help.