A repost from the dailybuilds thread.
Consistent crashing when trying to use / render a simple scene with lightmix. At first I thought it may have been my file but after creating a new scene the error persists. Scene file and bug report are attached. Thanks
_BugReport.txt (267 KB)
Production set.c4d (250 KB)
confirming, disabling Lightmix renders fine
This was already reported in the daily builds thread and should be fixed in the new daily build (4.10.2017). Did you guys try it out? Confirm, whether it’s fixed, please.
Thanks 
I can confirm at my end that it’s working. No crashing on the supplied scene. Cheers guys 