Then i got this
# XFW::OSCallError>
This occured when going back from Filter library to UI editing filter
Code
<class XFW::OSCallError> ::CreateThread(function 006BEE70) (parameter 06B1B6E0) failed with error code 0x00000008: Not enough storage is available to process this command.
Submitted via built-in bug reporting tool, to lengthy posting here