# Black Slots on Material Editor

**URL:** <https://forums.chaos.com/t/black-slots-on-material-editor/128609>\
**Category:** Help Required\
**Created:** [August 1, 2014, 2:58am UTC](https://forums.chaos.com/t/black-slots-on-material-editor/128609 "2014-08-01T02:58:30Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Fythos](https://avatars.discourse-cdn.com/v4/letter/f/e19b73/32.png) [@Fythos](https://forums.chaos.com/u/Fythos)\
**Post date:** [August 1, 2014, 2:58am UTC](https://forums.chaos.com/t/black-slots-on-material-editor/128609/1 "2014-08-01T02:58:30Z")

</div>

Hi guys, i am learning 3ds max and found out Corona just a few days ago, it seems awesome and i want to try to learn more, however there is this problem with my corona slots on the material editor,the slots appear all black and i can’t preview anything on them.

I already reinstalled everything, including max and it happened again. Am i missing something or is it a bug?

Screenshot provided for analysis.

Thanks in advance.

 ![corona bug.JPG](https://europe1.discourse-cdn.com/chaosprd/original/3X/4/0/40793ea237d585710af438083f12eebc24610acc.jpeg)

---

<div class="post-metadata">

**Author:** ![Fythos](https://avatars.discourse-cdn.com/v4/letter/f/e19b73/32.png) [@Fythos](https://forums.chaos.com/u/Fythos)\
**Post date:** [August 1, 2014, 3:20am UTC](https://forums.chaos.com/t/black-slots-on-material-editor/128609/2 "2014-08-01T03:20:10Z")

</div>

Found the problem digging the forum.. newb error.