# Missing 171st pixel on Wled 0.10.2 with more than one E1.31 universe

**URL:** <https://wled.discourse.group/t/missing-171st-pixel-on-wled-0-10-2-with-more-than-one-e1-31-universe/853>\
**Category:** Issues\
**Created:** [September 4, 2020, 9:15pm UTC](https://wled.discourse.group/t/missing-171st-pixel-on-wled-0-10-2-with-more-than-one-e1-31-universe/853 "2020-09-04T21:15:22Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![Aircoookie](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/aircoookie/32/2_2.png) [@Aircoookie](https://wled.discourse.group/u/Aircoookie)\
**Post date:** [September 17, 2020, 8:49am UTC](https://wled.discourse.group/t/missing-171st-pixel-on-wled-0-10-2-with-more-than-one-e1-31-universe/853/4 "2020-09-17T08:49:28Z")

</div>

Thank you for reporting, I could indeed reproduce the issue using xLights!

After 2hrs of troubleshooting, managed to fix the issue. It was an off-by-one error that actually caused the last LED of the first universe (170th) to stay unlit.  
The strange part is that this didn’t happen with LedFX (my go-to E1.31 testing client for its simplicity), despite it being set up for 510 channels as well.  
In any case, the issue is fixed now in latest master!

---

_[View the full topic](https://wled.discourse.group/t/missing-171st-pixel-on-wled-0-10-2-with-more-than-one-e1-31-universe/853)._