Hi @abh3, Thanks for pointing me to 5.1.0. Unfortunately, at RAL, it looks to be reproducible in 5.1.0 as well. with 'x' number of btyes at each MiB boundary overwritten by prior bytes. e.g: Start bad, -> + btyes 1048576 -> + 2056 2097152 -> + 2056 3145728 -> + 2056 ... If I can find anything further that might be useful from 5.1.0 I'll try to update here. Cheers, James -- You are receiving this because you commented. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1404#issuecomment-784206954 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1