# Tagtool freezes since IOS12.3 with external screen

**URL:** https://www.tagtool.org/t/tagtool-freezes-since-ios12-3-with-external-screen/1466
**Category:** Support
**Tags:** projection-mapping, ipad, troubleshooting, networking, external-display
**Created:** [June 20, 2019, 11:34am UTC](https://www.tagtool.org/t/tagtool-freezes-since-ios12-3-with-external-screen/1466 "2019-06-20T11:34:16Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![hetgraafschap](https://cdn.tagtool.org/user_avatar/www.tagtool.org/hetgraafschap/32/186_2.png) [@hetgraafschap](https://www.tagtool.org/u/hetgraafschap)
#### Post date: [June 20, 2019, 11:34am UTC](https://www.tagtool.org/t/tagtool-freezes-since-ios12-3-with-external-screen/1466/1 "2019-06-20T11:34:16Z")

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Hi Folks,  
I’m doing regular tagtool performances lately. One day everything worked perfect, the other day tagtool lags! This is the problem in detail: Tagtool runs smoothly on my IpadPro 2019 until I add an external beamer via USB-C (I use a USB-C to HDMI hub) . From the moment I add the beamer Tagtool starts to freeze for a couple of seconds, runs smoothly for a couple of seconds before it freezes again.

I didn’t had this problem before so I checked the dates. In between rehearsal and performance date, my Ipad automatically updated overnight the ios from 12.2 to 12.3!  
I guess this is the problem.  
I tried downgrading to 12.2 but no luck! Itunes doesn’t support the 12.2 and Google sends me to all kind of dodgy software tools to downgrade…with no luck.  
Word of warning: If you haven’t updated to 12.3 yet, DONT do it.

Anyone helping me out here? Solutions to downgrade? Other things to try?  
Luckily streaming via Apple TV/ Airserver still works but requires Wifi 😕

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### Author: ![iink](https://cdn.tagtool.org/user_avatar/www.tagtool.org/iink/32/133_2.png) [@iink](https://www.tagtool.org/u/iink)
#### Post date: [June 20, 2019, 4:09pm UTC](https://www.tagtool.org/t/tagtool-freezes-since-ios12-3-with-external-screen/1466/2 "2019-06-20T16:09:54Z")

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@hetgraafschap

We have multiple artists report this issue. We are investigating the problem.  
Interesting statement about the iOS update. Thx for the heads up!

We will have news soon.

Mat

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### Author: ![Gokhanokur](https://cdn.tagtool.org/user_avatar/www.tagtool.org/gokhanokur/32/936_2.png) [@Gokhanokur](https://www.tagtool.org/u/Gokhanokur)
#### Post date: [June 20, 2019, 9:11pm UTC](https://www.tagtool.org/t/tagtool-freezes-since-ios12-3-with-external-screen/1466/3 "2019-06-20T21:11:56Z")

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Hi, i updated my iPad Pro to iOS 13 beta. Still having that freeze issue.

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### Author: ![Spill](https://cdn.tagtool.org/user_avatar/www.tagtool.org/spill/32/468_2.png) [@Spill](https://www.tagtool.org/u/Spill)
#### Post date: [August 13, 2019, 6:33am UTC](https://www.tagtool.org/t/tagtool-freezes-since-ios12-3-with-external-screen/1466/4 "2019-08-13T06:33:23Z")

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I’m on 12.3 and mine crashes every time I am almost finished with a project. Ready to pull my hair out.