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Level 1

27 points

Big Sur - Preview issues when viewing pdf's

After updating to Big Sur, when opening pdf's in multiple panels full screen, the software just keeps switching between pdf's for no reason. Let's say I have two pdf's (pdf 1 and 2) opened in full screen with two panels in the same window; one moment in am scrolling down pdf 1, the second after it just randomly switches to pdf 2 for no reason, and then switches back to pdf 1 and so on.

I found out that after clicking 2-3 three times on the pdf in want to remain to, it doesn't switch (most of the time). But it's really annoying, my workflow is definitely slowed down from the constant switching.

I tried reinstalling Big Sur, didn't change anything. Same old problem. Tried erasing cache, didn't change anything. I don't know what to do (MacBook Air 2017).

Thanks.

MacBook Air 13″, macOS 11.0

Posted on Nov 17, 2020 11:44 PM

Best reply

Michele8991 Author

Level 1

27 points

Posted on Dec 1, 2020 5:52 AM

I tried with safe mode, the issue was still present. Tried switching off and on again, but the issue is still here. The issue does persist with any pdf file, and I'm not using a mouse. I'm just using the trackpad, and I don't think that's the problem since I don't have any problems with scrolling expect for this one.

As I explained in another post, there is another issue with pdf's. Basically, whenever I open them in full screen, apart from the issue I explained here, a black bar come up in the bottom of the screen, the same one that should be present in slide show mode. The problem is that I'm not using slide show mode, but simple full screen.

The two problems might be related to each other. As I said, I even tried reinstalling Big Sur, but nothing changed.

Thanks.

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Big Sur - Preview issues when viewing pdf's

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