The newly added check for HasTemporalUpscaleView() runs in 4.26 before any views are added to the ViewFamily

[soulsource]

In the latest version (3.1.0) a new check has been added that prevents the setup of XeSS-SR for ViewFamilies that don't have any Temporal-AA views.

The problem is that at least in 4.26 this check is being run before the views are created, and therefore fails unconditionally. Namely, the checks run when UGameViewportClient::Draw() calls GCustomStaticScreenPercentage->SetupmainGameViewFamily(), what is done a couple of lines before the calls to LocalPlayer->CalcSceneView(), which create the views.

[xessgamedev]

Thank you so much for your feedback, we'll investigate the issue and try to fix it in the coming release soon.

[xessgamedev]

The issue has been confirmed and Unreal Engine 4.26, 4.27, 5.0 are affected, we'll disable the checking for these Engine versions and strengthen our automation test.