[TxMt] unable to add dot-files to project

TM 1.1b5

I'm trying to create a project containing the .files from my home directory (.profile, .bashrc, &c.). When I explicitly add a .file to the project, either by dragging a proxy icon from an existing TM document, using the "tm" command line program (with multiple files), or using "add existing files..." from the project drawer, the files just disappear from the project. There used to be a per-project file/folder pattern setting accessible from the info window, but that's gone, with only the ability to edit per-project variables.

Am I doing something wrong, or is this a bug?