Output Blanking

I had a project in 14.3 where I had Output Blanking set to 2.35. After opening the project with 15 beta the output blanking is gone and when I select any value there or hit reset - nothing happens.

the same here...

Output blanking similar here. To be more precise, it shows up okay on timeline playback but only up to the point of the timeline rendering. It then vanishes. On full screen mode it show up intermittently and when the playback is paused -. V14 is still fine.

Output blanking disables the Deliver Page video preview when playing. Output through the BMD Mini Monitor is unaffected.
Enabling the scopes fixes the issue.

it works while you export from delivery tab, but not while you play the timeline...

Yep, not showing while playing but will when paused. Odd.

No problems with Output Blanking here in Studio 15b2 on Windows 10 Pro (1709).

No problems with Output Blanking here in Studio 15b2 on Windows 10 Pro (1709).

Same here on a Mac, Output Blanking works fine, even on projects that came in from 14.

Same problem here with iMacPro (2017) - DaVinci Resolve 15b3
macOS High Sierra 10.13.4
3,2 GHz Intel Xeon - 32 Gb DDR4 - Radeon Pro Vega 8176 MB
Newbie in Resolve

Same here, iMac 2017

I think I've solved this way: playback > proxy mode > half resolution
Before proxy mode was off.
Now the Output Blanking is ok
Can be on a iMacPro (2017) a lack of resource problem? It's only a 1920x1080 H264 not professional footage and rought cut timeline!

Same here. It's visible while paused in the timeline but gone while playback.