Using Open/Create/Replace file fx, one can specify custom patterns using the custom pattern input, and if only one type is specified, all files of that type that exist in that directory path show in the file section of the dialog. For example, if I use "*.bmp" as the custom pattern, all files of .bmp type display in the file section of the dialog that exist in the directory. However, if I specify multiple types for custom pattern, files of those types specified in the custom pattern do not show in the files section of the dialog. For example, if I specify "*.bmp, *.jpg, *.png" as the custom pattern, no files of these types display in the file section of the dialog. Why is this, and is there a workaround?