Navigator Master Mode cannot be accessed due to missing button or improper function of remaining button. Worked correctly in 7.0.4. New single button is probably meant to be a toggle: Master/Content(as in earlier versions) but retains function from 7.0.4 of select Content only.
Steps to Reproduce:
1. open a Master Document
2. select mode button in Navigator
3. try to toggle to Master mode from Content mode
only Content mode is possible. Master mode not accessible.
Toggle between Master and Content modes
User Profile Reset: No
Loaded Libre Office 22.214.171.124.(x64) Master Mode in Navigator locked out only Content Navigation View possible. This is a definite killer BUG for Master Docs
126.96.36.199. works correctly.
7.0.4 Navigator has 2 buttons. The top one is for Master and the bottom one is for Content. In 7.1 there is 1 button with up-down arrows positioned in the Content location. The Master button was deleted. The probable intent was to go back to a single toggle button as in earlier versions but the code driving the buttons was not updated properly so it selects Content/Content/Content/....
*** This bug has been marked as a duplicate of bug 140397 ***