There is a new patch available for Wing IDE 2.0.3 that fixes the
potential for auto-closing files after a Replace operation in the
Search Manager w/o saving the changes made to the file. This occurred
only in certain cases and resulted from a failure to set the editor to
non-transient state after the replace operation modified it.
The fix is in patch 2.0.3p5 on the following page, which includes
instructions for applying the patch: