You use a low-latency setup:
2026-02-13 21:50:35.656 T:1119 debug <general>: void ActiveAE::CActiveAE::ConfigureLowLatency(): Low latency mode: true - Initial buffer level: 20ms (resample: false)Do you have "Game Mode" activated on your TV?
Do you use a custom refresh rate or display synchronization at LE's video settings?
Background: A low-latency system usually works with a reduced A/V buffer size and a fixed response time. During channel change the buffer has to be filled again for the initial frame, which takes longer with your GPU. In fact it takes too long for your low-latency needs, so you get a black screen.
there is always a blank screen
A blank screen for a second during a channel switch? This is normal.
but when used Hardware decoding Inactive there is no black screen
There is a frozen frame instead of a black screen. I don't see how this is better than a black screen.