Extracting with sequential read, isolated catalogue and no tape marks

Hello.

I have a DAR archive created with no tape marks and an isolated catalogue for it. I would like to extract it using sequential read, which would allow for on-the-fly unpacking when downloading slices sequentially — without it, I would have to download the last part first, which I would like to avoid. From what I understand, lack of tape marks should not impede unpacking when the isolated catalogue is provided. Indeed, the extraction works, but it seems that the files extracted from the slice number 1 are corrupted.

In other words: when I have all the slices present on disk already,
`dar -x archive -A isolated --sequential-read`
results in
`Error while restoring {file}: Bad CRC, data corruption occurred`
for the files contained in the first slice. After that first slice, extraction continues normally without further errors.