I own TimeSplitters Future Perfect and it was me that put the entry on the wiki saying that it works. It is one my most frequently-played GameCube games and ever since r168 I've never had a single issue with it in Devolution except very recently with r200, but I was using a compressed ISO which is not officially supported by Devolution.
The only two things I can think of are....
1. Have you tried it with the sample loader?
2. Have you tried it with an older revision? Link for r169 and r197: https://www.mediafire.com/folder/g5f5575im43yi/Devolution
The only two things I can think of are....
1. Have you tried it with the sample loader?
2. Have you tried it with an older revision? Link for r169 and r197: https://www.mediafire.com/folder/g5f5575im43yi/Devolution










