As per title Selecting Pan/Crop zoom in causes jump reducing around 50%.

Here is an example file : https://drive.google.com/file/d/1AH5rJ83QjHl5nsQ47PpgCV2GtGNjRvQ2/view?usp=sharing

And YouTube video of it doing so on my PC :

Its a Nikon Z9 8K H265 10bit file I pulled in to run tests on the new VP23 to see if it was worth upgrading to.

Cheers!