UE5.5-5.6
Sequencer HDRIBackdrop异常
Sequencer HDRIBackdrop下，在Details面板下旋转可以看到正确的效果，但是保存之后会回退到初始角度，无论是否有关键帧。而在Sequencer下控制角度，则毫无反应（在线框模式下可以看到有旋转，但结果是初始角度）
Sequencer HDRI Backdrop Exception
Under the Sequencer HDRI Backdrop, rotating in the Details panel shows correct visual results, but saving resets it to the initial angle regardless of keyframe presence. Attempts to control the angle within the Sequencer yield no response (wireframe mode shows rotation occurring, yet the outcome remains the initial angle).