The default Display Performance setting in ID CC 2015.4 has been changed to High Quality (earlier it used to be Typical by default). This setting causes the images to be displayed at their full fidelity and this is what is happening when you see the 'Reading Image' at the bottom of the document window. For the images in your document, it happens the first time you open a document and navigate to a page containing images. On subsequent navigation to the same page(s) this does not happen as the images are cached and are rendered quickly at high quality.
The Drop Shadow coordinates should not change because of this setting, so can't say why that is happening. Would like to take a look. I've sent you a DM.
Adobe InDesign team
This also seemed to have fixed the Drop Shadow issue as well.
Thanks for the help!
I'm having a similar issue, where placed images, no matter their size, are extreamly slow to render. And it continues to happen on the same page (just scrolling up and down) and on previous pages that I've already viewed. So, scrolling through a document causes InDesign to continuously churn and beachball. I'm stuck with a deadline and I can not work. Please help.
Note: I've restarted InDesign. Restarted my machine. And reinstalled InDesign. I thought I was installing the previous version, but during the install it updates to the latest version, 2015.4.
Now, here's another curve ball. If I click out of InDesign, say to the finder, I can hover over the InDesign document, without going into it, and scroll through the pages perfectly. Hi-res and all. As soon as I click into it, the re-rendering happens.
Please, please help.
Having a similar issue with "Reading [Image name]" coming up constantly and every time I go to a different page." or move around on the same page. I have checked the defaults, trying them at typical and High Quality, as well having the interface "Live Drawing" set at never, delayed or Immediate with the same behaviour.