Version: 54.0.2819.0 (Official Build) canary (64-bit) for Windows
OS: Windows, Linux (haven't tried Mac yet)

What steps will reproduce the problem?
(1) Set a DOM breakpoint
(2) Go to Sources panel
(3) Refresh the page

What is the expected output?
See the DOM breakpoint

What do you see instead?
No DOM breakpoints.

Notes:
However, when you go back to the Elements panel, the DOM breakpoints get loaded and they continue to be displayed when you return to the Sources panel.