from @HWI-D00395:188:HYGNFADXX:2:This behavior causes an error with cutadapt 1.6 (maybe with other tools) because it doesn't work with tab character. With the direct upload tool or the deprecated version of Data Libraries no tab character is added. Do you have some idea to correct this problem? Thanks a lot Best regards --1108:1315:1965 1:N:0:ATGAGC to @HWI-D00395:188:HYGNFADXX:2: 1108:1315:1965 1:N:0:ATGAGC