Under Linux, use the explorer view in Codelite to navigate to a directory. Right click in the tree and choose Search... the Find in files dialog "Look in:" field does not contain the directory that was right clicked but rather contains the parent of the clicked subdirectory.
More importantly, the search takes about 100X longer than version 5.2 did under same test conditions. I haven't been able to pinpoint it but it appears that the File Mask may not be applied to the search.