The number of read1 and read2 is inconsistent

[yingHH]

Hi, I got ARC (snRNA + snATAC) data, but got an error when running cellranger-arc count:

[runtime] (failed)          ID.4567.SC_ATAC_GEX_COUNTER_CS.SC_ATAC_GEX_COUNTER._ATAC_MATRIX_COMPUTER.MAKE_ATAC_SHARDS

[error] Pipestance failed. Error log at:
4567/SC_ATAC_GEX_COUNTER_CS/SC_ATAC_GEX_COUNTER/_ATAC_MATRIX_COMPUTER/MAKE_ATAC_SHARDS/fork0/chnk3-ud2dd5584fc/_errors

Log message:
Input FASTQ file ended prematurely: file: "4577-1-atac-4_S4_L003_R3_001.fastq.gz", line: 154827

I checked the corresponding FASTQ files and found that the number of read1 (R1) and read2 (R3) were inconsistent. I would like to know if the number of read1 and read2 must be the same so that I can determine if the data I get is qualified.

Many thanks！