AE 10.5 color picker crash Yosemite

Question

Since upgrading to Yosemite, After Effects 10.5 consistently crashes whenever I use the color picker tool.  The crash occurs after clicking the color picker tool, then moving the cursor outside the bounds of the tool button.
This occurs on 2 different Macs (MBP & MP).  Both computers were upgraded from Mavericks.
I tried uninstalling After Effects, and reinstalling it, but that didn't solve the problem.
Here is a snip from the crash log that may have a clue as to what the problem is.
Crashed Thread:        0  Dispatch queue: com.apple.main-thread
Exception Type:        EXC_BAD_ACCESS (SIGABRT)
Exception Codes:       KERN_INVALID_ADDRESS at 0x000000003060909c
VM Regions Near 0x3060909c:
-->
    __TEXT                 0000000100000000-0000000100005000 [   20K] r-x/rwx SM=COW  /Applications/Adobe After Effects CS5.5/Adobe After Effects CS5.5.app/Contents/MacOS/After Effects
Application Specific Information:
abort() called
Performing @selector(dispatchMenuSelection:) from sender DVAMacMenuItem 0x6100001091b0
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib         0x00007fff8cbc5282 __pthread_kill + 10
1   libsystem_c.dylib             0x00007fff8d16fb73 abort + 129
2   U.dylib                       0x0000000102ebe8b7 U_LoadFrameworkBundle + 663
3   com.adobe.dvacore.framework   0x00000001032e5b84 (anonymous namespace)::SignalHandler(int, __siginfo*, void*) + 788

Answer 1

After Effects CS5.5 is not supported on Mac OSX v10.0 (Yosemite). See the system requirements for After Effects CS5.5.
See this for details of what versions of After Effects are supported on that operating system:
After Effects and Mac OSX v10.10 (Yosemite)