View Archive button and starting wayback causes text of Archive Now button to change
Present in v0.2017.07.26 and current master 1b5a13a.

In WAIL.py, this is the cause self.archiveNowButton.SetLabel("Initializing Wayback...") around line 483.
This was by design but now causes an awkward display due to title clipping. It is also an odd usage of an enabled and default button title to show state. Maybe disable the button, change the title to "Initializing..." or "Starting" with a pinwheel in the button title (is this possible?)
801c04c updated what is shown but we can still show an icon (commented out in that commit) and we mainly need to reset the button after Wayback is started. It does not appear that the callback to reset the button is being executed.
I did not see example usage of using fixAsync() in WAIL, so am not certain the logic actually works.