Finally narrowed this down, ongoing issue with slowdown, then complete freezing/crashing I've had with LibreELEC v7 and v8.
Completely re-scraped my library as I thought that 10 year old nfos were causing issues, turns out it wasn't this.
Fresh install of V8.0.0 on 3x different machines (2x Atom330 and 1x I5 4460), with the same sources and settings, all of which end up slowing down, then freezing completely when running either Trakt or Artwork Downloader. (more frequently with Trakt) - No response to SSH login etc
If I don't run either addon, everything seems stable, multiple hours of viewing and navigating the GUI.
Log below of most recent instance of a lock-up this morning (no crash log). Image of the GUI as it stopped responding.
08:10:26.024 T:140440947972224 NOTICE: special://profile/ is mapped to: special - Pastebin.com