# Extension Wizard - file open dialogs hang UI for several seconds

**URL:** <https://discourse.slicer.org/t/extension-wizard-file-open-dialogs-hang-ui-for-several-seconds/7881>\
**Category:** Support\
**Created:** [August 5, 2019, 2:14pm UTC](https://discourse.slicer.org/t/extension-wizard-file-open-dialogs-hang-ui-for-several-seconds/7881 "2019-08-05T14:14:19Z")\
**Posts on this page:** 1\
**Showing post:** 37

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [November 13, 2019, 7:03pm UTC](https://discourse.slicer.org/t/extension-wizard-file-open-dialogs-hang-ui-for-several-seconds/7881/37 "2019-11-13T19:03:06Z")

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Andras and I did some more digging into this issue.

Logged tccd using this command:

> log stream --debug --predicate ‘subsystem == “com.apple.TCC”’

During startup, there is a 50sec window where tccd is presumably checking the application signature:

> 2019-11-13 12:41:30.733517-0500 0x7694f Info 0xa9379 199 0 tccd: [com.apple.TCC:access] adhoc signed StaticCode :0x7fa6d33950e0 START  
> 2019-11-13 12:42:23.224389-0500 0x7694f Info 0xa9379 199 0 tccd: [com.apple.TCC:access] adhoc signed StaticCode :0x7fa6d33950e0 END

This seems to be the main cause of the hang in MacOS 10.14 for many unsigned applications.

Creating an ad-hoc signing with the following command allows Slicer to open without the delay:

> codesign --force --deep -s - /Applications/Slicer.app/Contents/MacOS/Slicer

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