I found a bug in v6800, dont know if its cause of my janky solution to make the program running.
When trying to add a joint using the add template button, the window that pops up appears cut off as seen in the attachment.
I cannot say for certain, but I believe there are two buttons, cancel and ok. You can use the TAB button to cycle to them for now. If you click the enter name box and press tab 3 times followed by return, you will create the template.
I have also noticed some visual bugs such as the hotkeys window, most of the entries have the bottom cut off.