Continued ContributorI played around with it more. I can reproduce the bug, consistently. It happens for all reports. But the issue only happens under these circumstances:
1. Using Edge browser (I tried Chrome and IE, and this issue does not occur with those other browsers)
2. The Edge window starts out maximized (this issue does not occur when the Edge window is not maximized)
3. Then, I open a report and then click "Edit Report," or, I go to a dataset and click "Create report"
Under those circumstances, the yellow '+' button appears on the left, covering up the left/right arrow buttons.
If the window is not maximized on my screen, then I do not experience this issue.
If the window starts out maximized, then I experience this issue...and then, if I subsequently "Restore" the window to a smaller size, the yellow '+' button automatically gets moved to the right side, where it belongs.
If the window is not maximized on my screen to start with, then I do not experience this issue...and, if I subsequently maximize the window, then I still do not experience the issue -- i.e., the yellow '+' button does not get moved to the left.
Maximized:
Then, after clicking "Restore," or resizing, so that it is not maximized: