Blackmagic Forum

Posted: **Fri Apr 09, 2021 11:36 am**

We're getting artefacts in Resolve 16.2.8.005 Studio and 17.1.1 Build 9 Studio render output for a track with PNG subtitles: composite mode normal, zoomed and positioned.

Playback in Resolve/timeline is fine.

See phone cam clips (playback in timeline vs. render with artefacts) and actual PNGs used at
https://www.filemail.com/d/ayvbtcykbgpzozi.
Sorry for potato quality of the clips but I am still in shock.

The PNGs attached were generated with Subtitle Edit 3.5.17

Posted: **Fri Apr 09, 2021 1:15 pm**

: DE-2997fps-DVD-air-Null_Sonne_No_Point0023.png (84.29 KiB) Viewed 655 times

: Screenshot - Resolve 17 render bug in media viewer.png (616.13 KiB) Viewed 655 times

Even weirder artefacts in Resolve 17.1.1 Build 9 Studio:

Same project, some PNGs (subtitles) will randomly render yellow and fringed in the media viewer.

See attached screenshot of a subtitle PNG overlay with artefacts in media viewer and the original PNG file.

Posted: **Fri Apr 09, 2021 1:21 pm**

: Screenshot - Resolve 17 rendered file with artefacts.png (234.29 KiB) Viewed 652 times

This ended up in the rendered file.

Posted: **Wed Apr 14, 2021 4:10 pm**

Any other information required to get someone to look at this issue? tia

Blackmagic Forum

Render bug with PNGs (16.2.8.005 Studio/17.1.1 Studio)

Render bug with PNGs (16.2.8.005 Studio/17.1.1 Studio)

Re: Render bug with PNGs (16.2.8.005)

Re: Render bug with PNGs (16.2.8.005)

Re: Render bug with PNGs (16.2.8.005 Studio/17.1.1 Studio)