Video effects are lost in areas of sequence

Hi, This clip represents the loss of one effect in particular, namely exposure. Here is a brief recap

Increased exposure, subnet mask and position were applied for the whole project after loading the file to the timeline.
A few additional changes to were made to subnet mask and position, mainly in the beginning.
For whatever reason, after some splits, the increase exposure is visibility as it was on the original MP4 file BUT exp eff says it is set to 0.45.
Even if I reset the effects and view them in sequence preview they appear to be as I want them to be.

5. You'll see that the Green buffereing on the timeline seems stalled. (?)

I hope my description is understandable.

Peter D

Here are the Portable Project files and the dxdiag report.

I did download MediaInfo. Did you want me to run a report? If so, which one?

Thanks for your support Borate!

Using beta 7.53, exposure is a consistent .42 throughout in preview and export here.

If you want to change it for all clips, first select (highlight) all clips on the track.

Open the effects dialog with fx and change the exposure setting. Then click the sixth icon from the left on the toolbar (replace effect chain).

The new setting will be applied to all clips.

Lighting the subject will improve the result next time. ^_