Playback Resolution 1/8 and 1/16 Is Greyed Out. Playback Also VERY Slow.

[Adam5EF7]

Hi you guys. I am having playback speed issues and I am unable to set my playback resolution to 1/8 or even 1/16.  I've cleared my cache, moved it to a faster location, and even reset my program but nothing seems to work. I'm working with 720p video at 24 fps and my sequence matches my footage. I'm on a 2020 Mac OS Big Sur with 16gb of RAM.... HELP!!!

[Jeff Bugbee]

I believe 1/8 or 1/16 resolutions are only available on footage over 4k.

[Adam5EF7]

That's not true unfortunately but thanks for response!

[Andy 1968]

I know on the PC you cannot opt for 1/8 or 1/16 on HD videos that are 1920 X 1080 or 1280 X 720.

[Jeff Bugbee]

Feel free to confirm on your machine as well

[Fator5C85]

4K footage here

[Chloe23324122g41d]

did you ever solve this problem? im still having this issue

[Jeff Bugbee]

What is the resolution of your footage?

[kevin245802588nqr]

I'm using 4k @25fps and I am unable to turn down playback resolution to 1/8 or 1/16 as well.

[Jeff Bugbee]

Are you on a 4k timeline?