vray denoiser stops render from rendering

I’ve been working on a scene for a few days it is a fresh scene started with the latest vray 3.06.03 and max 2017. I thought it was a little noisey, so i added a vray denoiser, switched to MID strength and elements by denoise type instead of all and hit render and it does the LC pass and then onto the brute force pass and just sits at 100% CPU use… for 7 whole mins and no buckets complete.

I remove the denoiser and it works again fine… 50% complete after 5 mins of rendering.

Interesting bug?! I can send the scene probably but it is 300mb :-\

Yes, scene will be necessery to investigate and resolve this.
You can send us a link or request access to ouu FTP server at support@chaosgroup.com
Send us a link to this page for reference also.
Thank you very much in advance.

I deleted the the denoiser, which fixed it, and put it back on there and it works fine. Really strange, but I no longer have a scene where it is broken.

If it occurs again save that file and send it over.
Thank you very much in advance.