vendor_dlkm failure of HyperOS

[amackpro]

+ java -jar bbootimg/bbootimg.jar unpack
11:05:58.923 [main] WARN cfig.packable.PackableLauncher - [vendor_dlkm.img] will be handled by [SparseImgParser]
11:05:58.982 [main] WARN cfig.packable.PackableLauncher - 'unpack' sequence initialized
11:05:59.017 [main] INFO rom.sparse.SparseImage - sudo mount build/unzip_boot/vendor_dlkm.img -o loop -t erofs build/unzip_boot/mount
11:05:59.103 [main] INFO avb.AVBInfo - parseFrom(FILE:build/unzip_boot/vendor_dlkm.img) ...
11:05:59.105 [main] INFO avb.AVBInfo - image FILE:build/unzip_boot/vendor_dlkm.img has no AVB Footer
11:05:59.106 [main] WARN rom.sparse.SparseImage - stream doesn't look like valid VBMeta Header
11:05:59.106 [main] WARN rom.sparse.SparseImage - failed to parse vbmeta info
11:05:59.110 [main] WARN rom.sparse.SparseImage - [aosp/plugged/bin/sefcontext_compile, -o, build/unzip_boot/file_contexts.bin, aosp/plugged/res/file_contexts.concat]
11:05:59.138 [main] INFO rom.sparse.SparseImage -
┌───────────────────────────────────────┬──────────────────────────────────────┐
│What │Where │
├───────────────────────────────────────┼──────────────────────────────────────┤
│image (erofs) │vendor_dlkm.img │
├───────────────────────────────────────┼──────────────────────────────────────┤
│mount point │build/unzip_boot/mount │
└───────────────────────────────────────┴──────────────────────────────────────┘
┌──────────────────────────────────────────────────────────────────────────────┐
│To view erofs contents: │
├──────────────────────────────────────────────────────────────────────────────┤
│sudo mount vendor_dlkm.img -o loop -t erofs build/unzip_boot/mount │
└──────────────────────────────────────────────────────────────────────────────┘
11:05:59.143 [main] WARN cfig.packable.PackableLauncher - 'unpack' sequence completed

HyperOS marble vendor_dlkm.img failing to unpack for some reason
manual mounting works