Unfortunately, I don’t yet have a series of reproducible steps that cause this condition.  However, for CMD+T at least, I’ve found that repeatedly hitting CMD+T will “recover” the ability to locate all files in the folder that’s open.

Some other points of interest… From reading the docs it seems like this could be related to http://manual.textmate.org/projects.html#effective-folder and it’s interaction with the fact that I have “single click to open file” enabled.

Have any other users experienced this?  What sort of debugging information would be useful?

Thanks