Same footage, same color space, different colors in AE 2025 and AE 2026

I’ve just switched from AE2025 to AE2026 but I have a problem with Aces colors interpretation.

I have a tiff sequence RGB+A (premultiplied alpha) with sRGB color space.

The Project is set as follows in both AE25 and AE26 (AcesCCT):

The footage’s colors are interpreted as follows:

This is my workflow and I’ve never had problems with colors until I’ve worked with AE25.

In AE2026, when using AcesCCT I see washed-out colors; with AcesCC, the colors are ok. 

This is the only difference between the settings:

Same machine, same footage, same color settings, different version of AE = different colors. 

Any ideas?

I’ve searched in AE Preferences but they look very similar and they seem to have same settings.