Cryptomatte in Nuke

Development Pipeline & Plugins
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1

I have followed the documentation & tutorials (over & over) by William Faucher & Winbush for getting the Object Id’s/cryptomatte pass out of UE.
I am using Nuke and am unable to get them showing up. Have cryptomatte plugin working in Nuke. (Successfully viewing cryptomattes from Renderman)
Below are the screen shots of what I get from the multilayer exr from UE 4.27.2. Have tried with UE5 and get the same result.

Any help would be much appreciated.

Screen Shot 2022-05-24 at 11.54.00 am
Screen Shot 2022-05-24 at 11.54.00 am1914×1526 203 KB

Screen Shot 2022-05-24 at 11.51.01 am
Screen Shot 2022-05-24 at 11.51.01 am1656×2430 89.7 KB

Screen Shot 2022-05-24 at 11.51.14 am
Screen Shot 2022-05-24 at 11.51.14 am1732×2310 157 KB

Screen Shot 2022-05-24 at 11.51.21 am
Screen Shot 2022-05-24 at 11.51.21 am1278×804 47.6 KB

2

For anyone seeing this later.

Nuke 13 has cryptomatte built-in and it works as expected with Ue5 cryptomattes.