# VFB not updating on Mac C4D

**URL:** <https://forums.chaos.com/t/vfb-not-updating-on-mac-c4d/136780>\
**Category:** Help Required\
**Created:** [April 20, 2017, 3:19pm UTC](https://forums.chaos.com/t/vfb-not-updating-on-mac-c4d/136780 "2017-04-20T15:19:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nickmilitello](https://avatars.discourse-cdn.com/v4/letter/n/a3d4f5/32.png) [@nickmilitello](https://forums.chaos.com/u/nickmilitello)\
**Post date:** [April 20, 2017, 3:19pm UTC](https://forums.chaos.com/t/vfb-not-updating-on-mac-c4d/136780/1 "2017-04-20T15:19:43Z")

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hey, just started with Corona, coming from Octane. Having an issue with VFB not continuing to render an image. I hit render and it renders to picture viewer but doesn’t continue. Also all of the tool bar button are greyed out. Any thoughts? Using a demo license.

 ![Screen Shot 2017-04-20 at 8.18.00 AM.png](https://europe1.discourse-cdn.com/chaosprd/original/3X/f/a/fa57d3f8103045b134651ddba49e8ec3f3e68a25.png)

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<div class="post-metadata">

**Author:** ![nickmilitello](https://avatars.discourse-cdn.com/v4/letter/n/a3d4f5/32.png) [@nickmilitello](https://forums.chaos.com/u/nickmilitello)\
**Post date:** [April 20, 2017, 3:24pm UTC](https://forums.chaos.com/t/vfb-not-updating-on-mac-c4d/136780/2 "2017-04-20T15:24:16Z")

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sorry forgot to make sure C4d render setting were set to Corona renderer. Image though is still not refreshing when I change something