I have Xubuntu Linux 18.04 installed as a guest OS, and am now experiencing the following problems after upgrading to Parallels 14: When copying files, particularly large ones from the guest OS to the host's folder, the file will copy so many megabytes before stating: 'Error writing to file. Invalid argument. Do you want to skip it?'. If I select 'retry', and 'replace', it will successfully complete. Sometimes I will get the error: 'Error splicing file. Cannot allocate memory' Torrent-like applications give me 'invalid argument' after starting and downloading for a while. I can create small files and folders on the shared folder without a problem. However, when copying the same files from the host OS to the guest, I have no problems. More details: MacOS 10.13.6 is the host Xubuntu Linux 18.04 The shared folder is a SDXC card formatted as Mac OS Extended (Journaled), nothing special in way of permissions. Test file is about 1gb in size, though I also have problems with files as small as 250mb. Never had any problems with the same setup and configuration under Parallels 13. Please advise.