Description of problem:
OB/C Pages give 404 error
*** Bug 1785921 has been marked as a duplicate of this bug. ***
I tested with 4.4.0-0.nightly-2020-01-13-010304, ob and obc pages could be opened without any issues.
*** Bug 1798246 has been marked as a duplicate of this bug. ***
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.