Due to the failure of the AVS2 decoder initialization in CoreELEC, AVS2-encoded videos cannot be played

My device uses the S905X3 processor.

When I tried to play AVS2-encoded videos in COREELEC 20.4, it didn’t work.
However, when I tried to play CAVS-encoded videos, it played normally.

I checked the kernel modules using the lsmod command and found that both video format decoders were provided.

But when I used the command dmesg | grep amvdec, I saw that AVS2 seemed not to have completed initialization.

Is this a neglected bug? I hope to get a solution, thank you!