I updated my OS X version from your 34_03 pack to the _05 one and my old save files will not load. When I select a game made with the old pack to continue, it starts to do the load and then hangs with the following message in the terminal
objc[74089]: Object 0xe669960 of class __NSCFString autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xe789020 of class __NSCFString autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xfa24f10 of class __NSCFString autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xe187e90 of class __NSArrayI autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xe0a4170 of class __NSArrayI autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xfa22700 of class __NSCFDictionary autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xfa22c10 of class __NSCFString autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xe654e30 of class NSPathStore2 autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xe0a40f0 of class NSPathStore2 autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xe7661b0 of class NSPathStore2 autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xe766220 of class NSPathStore2 autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xfa23890 of class NSPathStore2 autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
objc[74089]: Object 0xfa24f70 of class __NSCFString autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
2012-03-07 22:44:16.525 dwarfort.exe[74089:6303] NSAlert is being used from a background thread, which is not safe. This is probably going to crash sometimes. Break on _NSAlertWarnUnsafeBackgroundThreadUsage to debug. This will be logged only once. This may break in the future.
It tries to display an alert window, but I can't read what it says because a non-openGL thread tries to display it and thus it never gets drawn to :/ I tried with both df 34.04 and .05 and neither seem to work. I reverted back to the previous version of your tileset and it loads just fine. I'm not sure what changed, but im going to diff some files to see if I can figure it out :/
Edit: before everyone asks, I did replace my save/region*/raw folder with the new one before trying.