Probably not too many using ScanSnap Manager but with the new beta it just started crashing. Maybe the developer sees this. I submitted a bug report to Apple.
Here is the stack trace. Basically try to scan and it crashes. Also click on Settings->FileOption and it crashes. The first beta was fine. Latest version of ScanSnap (6.3 L70)
| 0 com.apple.QuartzCore | 0x9acf79e2 CA::Render::Context::add_begin_time(double) + 94 |
| 1 com.apple.QuartzCore | 0x9abee470 CA::Context::commit_transaction(CA::Transaction*) + 3748 |
| 2 com.apple.QuartzCore | 0x9abecf2a CA::Transaction::commit() + 528 |
| 3 com.apple.AppKit | 0x91618038 __65+[CATransaction(NSCATransaction) NS_setFlushesWithDisplayRefresh]_block_invoke + 452 |
| 4 com.apple.CoreFoundation | 0x9389fe1b _runLoopObserverWithBlockContext + 22 |
| 5 com.apple.CoreFoundation | 0x93892eea __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 22 |
| 6 com.apple.CoreFoundation | 0x93892e13 __CFRunLoopDoObservers + 459 |
| 7 com.apple.CoreFoundation | 0x93839e52 __CFRunLoopRun + 2365 |
| 8 com.apple.CoreFoundation | 0x93839218 CFRunLoopRunSpecific + 584 |
| 9 com.apple.CoreFoundation | 0x93851f7d CFRunLoopRunInMode + 82 |
| 10 com.apple.HIToolbox | 0x92e5c8b1 RunCurrentEventLoopInMode + 323 |
| 11 com.apple.HIToolbox | 0x92e5c5ab ReceiveNextEventCommon + 741 |
| 12 com.apple.HIToolbox | 0x92e5c2a7 _BlockUntilNextEventMatchingListInModeWithFilter + 71 |
| 13 com.apple.AppKit | 0x915200b0 _DPSNextEvent + 1164 |
| 14 com.apple.AppKit | 0x9151ec7b -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 957 |
| 15 com.apple.AppKit | 0x9151e8b6 -[NSApplication(NSEvent) nextEventMatchingMask:untilDate:inMode:dequeue:] + 108 |
| 16 com.apple.AppKit | 0x91518f57 -[NSApplication run] + 751 |
| 17 com.apple.AppKit | 0x91508d67 NSApplicationMain + 1140 |
| 18 jp.co.pfu.ScanSnap.V10L10 | 0x00002a8a main + 268 |
| 19 jp.co.pfu.ScanSnap.V10L10 | 0x00002975 start + 53 |
