When ripping CDs, Roon generally (but not always) shows “tag extraction failed” for the first track on disc. The skipped filed log shows a file size (generally around 380KB) that is much smaller than the size of the actual file. The only way to get Roon to scan/add the file is to rename the directory the file is in.
It seems like Roon is trying to index the directory as soon as it sees it created - and when that happens there is only a fragment of the first track.
My config below:
Roon Version: 1.5 (build 363) (64 bit)
OS: Windows 10
Roon Core: Custom PC (i7-7700 w/ 16GB RAM)
Music Stored: Synology DS718+ 4TB Raid 0 (wired network connection)
Collection Size: 40K tracks
Ripping Software: dBpoweramp
Network
Router: RT-AC3100 (firmware updated Nov 2018)
Switch: TP-Link TL-SG1024DE