Currently, RHSCL contains haproxy-1.8.17 while, at the time of submitting this bug, upstream has progressed to 1.8.22, which contains many important bug fixes. Strongly suggest we rebase to latest upstream release.
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. https://access.redhat.com/errata/RHSA-2020:2265