If it worked before .it should again..maybe it isn't all the way down.
Also if it isn't too bad you can stone it ..or just turn it around for a new working face.
There was one on sales not so long ago with the bolt...otherwise ..maybe one of the guys on the Rapid forums may help...there were some Titanium ones about not so long ago.

...also the early dogs have offset holes ..so only work one way ...i think.