Hello! I've been playing with Evans' DF 47.04 Masterwork and I confirm the magma wells not working bug mentioned by Fjolsvith (although I managed to replicate their effect with the DFHack command "source").
A very crucial bug I came across is a crash on load game that I can't overcome. It seems like it crashes when the load bar reaches "Artefacts", and effectively, I can only load backups from before there were any artefacts produced in my fort. For reference, the first artefact was a weird one - "some animal" hardened leather tail cover (succubus item?) decorated with gems. The second was a wooden armor stand, but the first is already enough for the crash.
Trying to troubleshoot it, I got hopeful when I found this thread blaming the additional weapons mods that are included in MW:
http://97.107.128.126/smf/index.php?topic=159852.0Only to later realize all of these are already turned off in my game, so they are not the problem. They mention graphics also, and mine are Evans' defaults.
Other than this, my play through as a dwarven fortress was going smoothly. I'll revert to an older save and see if a different artefact still causes the crash.
Edit: This is no longer relevant - I couldn't replicate the bug (same dwarf made a different artefact, no problem at all), and after playing in the backup for a while, I was able to load the original save without a problem!