truncated quant.sf output

I'm working with the Mus Musculus and Homo Sapiens RNA-seq data and I wanted to check on one thing -- a subset of the quant.sf files are much smaller than the rest and lack headers - they appear to be truncated somehow? Do you know the reasons for these?
Examples of this: SRP166447/SRR8140707_quant.sf, SRP087577/SRR4195593_quant.sf, SRP092166/SRR4455112_quant.sf
(human)

Thanks!