Lemonheads - Spotify playing alternative versions!!?

[Budespur]

Thought I was going nuts on this but got some friends to confirm- Spotify has randomly started playing different versions of certain Lemonheads songs! The Outdoor Type is the most obvious: a fully different guitar solo (electric instead of acoustic) and a different vocal mix. But other songs are affected too (My Drug Buddy, Into your Arms)  just with slightly different mixes, vocal levels etc. After 20 odd years of listening to the songs it's horrible that the originals have just disappeared!! Anyone know how I can get them back??