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ishook
Known Participant
November 10, 2025
Open for Voting

OCIO ACES conversion bug in 25.5

I'm having an issue with AE where it clips my white values when I put any effect (exposure, hue/sat, etc) on my layers. Even negative exposure of -.01 will suddently clip the whites. It's like it turns it into 8bit instead of its native 32.

  • Project color settings are OCIO Aces 1.3/32 bit / working linear ACEScg.,
  • Sequence is a 32bit ACEScg exr, interpreted as ACEScg,
  • viewport display is set to sRGB Display/ACES 1.0 - SDR Video (tried others too). Also tried None and have been  using the OCIO display transform on an adjustment layer.
  • Raw Sequences look great, but when I put an effect (like exposure) on some sequences directly, I notice whites get capped with barely any adjustment, even negative adjustment of exposure.
  • Weird: I can buffer the entire animation with capped (wrong looking) whites, and in the OCIO Display Transform effect, if I hit 'reset' it will 'fix' the entire sequence once. So it looks perfect. If I adjust a single thing, it re-caps all whites. Hitting reset again fixes only the pre-buffered frames. It's like it goes from 32bit to 8 bit every time I make an adjustment to a sequence. 
  • It's worth noting that I can put an adjustment layer with effects on top and this capping of whites doesn't happen at all. It's only when I put adjustments on a layer itself.

1 reply

nishu_kush
Legend
November 13, 2025

Sorry to hear about the issue.

 

Is your issue similar to the one discussed in the following thread: https://adobe.ly/48dMQbS


Thanks,
Nishu

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