# LulzBot Cura 2.6.66 Qt Issues

**URL:** <https://forum.lulzbot.com/t/lulzbot-cura-2-6-66-qt-issues/5548>\
**Category:** Software\
**Created:** [January 26, 2018, 8:29am UTC](https://forum.lulzbot.com/t/lulzbot-cura-2-6-66-qt-issues/5548 "2018-01-26T08:29:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![over-engineered](https://avatars.discourse-cdn.com/v4/letter/o/e9c0ed/32.png) [@over-engineered](https://forum.lulzbot.com/u/over-engineered)\
**Post date:** [January 26, 2018, 8:29am UTC](https://forum.lulzbot.com/t/lulzbot-cura-2-6-66-qt-issues/5548/1 "2018-01-26T08:29:16Z")

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I am running Windows 10 and recently upgraded from 2.6.52 to 2.6.66. If I choose to run Cura right after installation everything works fine, but if I try running it again (either from the shortcut or installation folder) I receive the following Qt error:  
 ![2018-01-26 00_05_12-cura-lulzbot.png](https://us1.discourse-cdn.com/flex020/uploads/lulzbot/original/2X/9/995fbef16b3eeb3f9c99ff5d835adf6d4dbe2918.png)  
I have tried setting QT\_QPA\_PLATFORM\_PLUGIN\_PATH to C:\Program Files (x86)\cura-lulzbot 2.6\PyQt5\plugins\platforms (which does contain qwindows.dll) but I receive the same error with a pathname specified. Reinstalling allows me to run Cura again. I do not have any other Qt installations.

Any suggestions on how to fix this?

Thanks

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<div class="post-metadata">

**Author:** ![Brent.I](https://avatars.discourse-cdn.com/v4/letter/b/ecc23a/32.png) [@Brent.I](https://forum.lulzbot.com/u/Brent.I)\
**Post date:** [January 26, 2018, 3:54pm UTC](https://forum.lulzbot.com/t/lulzbot-cura-2-6-66-qt-issues/5548/2 "2018-01-26T15:54:14Z")

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Sorry to hear about the issues. If possible, can you post the Cura logs from the crash upon restart? We would like to look into them for possible issues.