I'm not crunching BIGADV, but it seems the regular 6.30 FAH SMP core is outdated now too? There are two different "A3" cores? See if you can follow this:
[09:56:16] + Attempting to send results [March 4 09:56:16 UTC]
[09:56:24] + Results successfully sent
[09:56:24] Thank you for your contribution to Folding@Home.
[09:56:24] + Number of Units Completed: 30
[09:56:28] - Preparing to get new work unit...
[09:56:28] Cleaning up work directory
[09:56:28] + Attempting to get work packet
[09:56:28] Passkey found
[09:56:28] - Connecting to assignment server
[09:56:29] - Successful: assigned to (128.143.199.96).
[09:56:29] + News From Folding@Home: Welcome to Folding@Home
[09:56:29] Loaded queue successfully.
[09:56:32] + Closed connections
[09:56:32]
[09:56:32] + Processing work unit
[09:56:32] Core required: FahCore_a3.exe
[09:56:32] Core found.
[09:56:32] Working on queue slot 01 [March 4 09:56:32 UTC]
[09:56:32] + Working ...
[09:56:32]
[09:56:32] *------------------------------*
[09:56:32] Folding@Home Gromacs SMP Core
[09:56:32] Version 2.22 (Mar 12, 2010)
[09:56:32]
[09:56:32] Preparing to commence simulation
[09:56:32] - Looking at optimizations...
[09:56:32] - Created dyn
[09:56:32] - Files status OK
[09:56:32] Need version 227
[09:56:32] Error: Work unit read from disk is invalid
[09:56:32]
[09:56:32] Folding@home Core Shutdown: CORE_OUTDATED
[09:56:36] CoreStatus = 6E (110)
[09:56:36] + Core out of date. Auto updating...
[09:56:36] - Attempting to download new core...
[09:56:36] + Downloading new core: FahCore_a3.exe
So the WU requires core A3, it found core A3, but that core was out of date, so it downloaded... core A3! WTF?