Keyboard shortcut keys assigment problem

When i try to assign “Undo” action to “Ctrl + Z”, all goes fine, assigment done, “KeyBindings.xml” in Renoise Roaming folder overwritten. After closing and reopening Renoise after that - assigment is magically lost :frowning:

Renoise 3.0.1 x64

Win 8.1 Update 1 x64

After key combination assigment and saving “KeyBindings.xml”

5348 Ctrl+Z Assigned.PNG

After reopening Renoise

5349 Ctrl+Z Lost.PNG

Please help

Please help - same problem , same versions and all.