Error while generating with latest version

[prashanthca]

When I try to generate film grain for a video .ivf file encoded using SvtAv1EncApp and ffmpeg, I get the following error:

[libdav1d @ 0x5598f5d69280] libdav1d ed63a74
[libdav1d @ 0x5598f5dd3600] libdav1d ed63a74
[av1_metadata @ 0x5598f5dbd1c0] zero_bit out of range: 1, but must be in [0,0].
[av1_metadata @ 0x5598f5dbd1c0] Failed to read unit 0 (type 6).
[av1_metadata @ 0x5598f5dbd1c0] Failed to read temporal unit from packet.
[ivf @ 0x5598f5dbbfc0] Error applying bitstream filters to an output packet for stream #0: Invalid data found when processing input
Error: Invalid data found when processing input

What am I doing wrong here? Here's the command used:

grav1synth generate S01E04-video.av1.ivf -o S01E04-video.gen.ivf --iso 2000 --chroma