Screen focus moves between clips in expert mode at magnification

[markk28125169]

I just installed Mac Premiere Elements 15 (have used 11 and 14 previously) on a new computer.  I import mp4 video files (1280 x 720)- one in video/audio 1, the other in video/audio 2.  I'm using Expert mode.  I apply the Transformation-Crop tool to video 2 and crop video 2.  I want to edit around the area I just cropped so I magnify it, to say, 150% and move the focus to the crop area (which is relatively small).  I make an adjustment (lighting-brightness) in the color to video 2 which I want to apply to maybe one frame so I clip the frame and make the adjustment.  When I move (via scroll left key) to the previous frame (which is now a different clip), what's visible on the window shifts outside of where it was originally.  This doesn't happen in Quick mode (but I think Quick mode is useless for what I'm doing).  It also doesn't happen if I have video 1 (the non-cropped clip) selected/highlighted and then scroll - only if video 2 is selected/highlighted.  It worked as expected in Premiere Elements 14 on a different computer.  Is this a bug or is something that maybe unique to my computer?

(I tried searching "magnification expert" but didn't find any relevant posts.)

[Steve Grisetti]

I'm sorry but I'm just not clear at all on what you're trying to do.

Can you post some kind of screen capture that illustrates what you're describing?

[markk28125169]

The following shows two video files being used.  Video 2 is cropped and shown in the smaller box.  This is an example that shows the clear delineation between the two video files.  As you can see, I have cut "Test2.mp4" and it is selected.  This is 400% magnification.

When I move the cursor left, this is what I get:

The screen focus has moved away from where it was in the previous screen capture.

In preparing these screen captures, I noticed that, after I make the cut, if I select the Video 1 clip and then go back and select the video 2 clip, this doesn't happen, the screen focus doesn't shift (it looks like any action that de-selects the video 2 clip may work).  So that's a workaround although I would like to know if this is a bug or not.

[Steve Grisetti]

I'm sorry. I don't know why that is happening.