This issue is on Windows version 24.0.2. I have not tested it on Linux.
I have a project that has some .x files which are header files like .h. I modified the tool->application languages ->C/C++ -> General->Edit these extensions to add .x as an valid extension. I can see that Slickedit is able to handle all .x files correctly except for one.
I have a file called gen.x and gen.h. For some reason, Slickedit is not able to recognize the symbols from gen.x. Could it be due to the fact that both have same name but different extensions?