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Cura 2.3/2.4 stuck on zooming

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I ran into a strange issue when using Cura: the application seems to be 'stuck' on zoom mode. After loading a model (any model) and panning/zooming around a bit, when I move my mouse up and down the viewport keeps zooming in and out by itself (without me pushing any keyboard keys and only moving my mouse). I can no longer select my model or stop zooming. I noticed the issue (video included below) on Cura 2.3, but upgrading to 2.4 didn't resolve the issue. I'm running OX X 10.11.6 on a mid-2010 15" MacBook Pro. Is this a bug in Cura or are there any other suggestions for fixing it?


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Hi Vincent,

The shortkey for zooming in Cura 2.3 and 2.4 is: 'SPACEBAR' + Move mouse up-down.

Does pressing the spacebar remedy the issue?

Is there a specific moment this appears?

Only after a lot of zooming, panning and rotating?

Does it work when restarting Cura, or are you still completely stuck?



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Hi Vincentbaas,

Sorry for the delay on my end. Just to get a fresh start, I advice to reset Cura. Instructions on that can be found here.

I have forwarded the issue here at Ultimaker, but it seems unique and we cannot reproduce this in any way.

Hopefully the reset helps!


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Well, it took me even longer to reply, so no worries :p

I trued resetting Cura, but that didn't help. But I might have found something that may (or may not ) have resolved the issue: In the initial situation I had my keyboard connected via the USB-hub of my external display (Dell Ultrasharp U2515H). I changed this to plugging my keyboard directly into my laptop. Anyway: the issue is gone now, so thanks for the support!

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