# Left panel freezing ver 1.2.3 win 10

**URL:** <https://discourse.joplinapp.org/t/left-panel-freezing-ver-1-2-3-win-10/11352>\
**Category:** Support\
**Created:** [29 September 2020 16:53 UTC](https://discourse.joplinapp.org/t/left-panel-freezing-ver-1-2-3-win-10/11352 "2020-09-29T16:53:33Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![dpoulton](https://yyz2.discourse-cdn.com/flex028/user_avatar/discourse.joplinapp.org/dpoulton/32/29723_2.png) [@dpoulton](https://discourse.joplinapp.org/u/dpoulton)\
**Post date:** [29 September 2020 18:55 UTC](https://discourse.joplinapp.org/t/left-panel-freezing-ver-1-2-3-win-10/11352/7 "2020-09-29T18:55:13Z")

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This is also covered in the "Available for testing" thread.

> [@Pre-release 1.2 is available for testing](https://discourse.joplinapp.org/t/pre-release-1-2-is-available-for-testing/11207/27):
>
> Indeed, I see it now. That must be due to the sidebar rendering optimisation, I'll look into it. Yes don't rely on these random names as they are generated by the styling library. For now, you can use the non-random classes or selectors like div p span {} etc to get to the element you need to target.

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_[View the full topic](https://discourse.joplinapp.org/t/left-panel-freezing-ver-1-2-3-win-10/11352)._