OpenShift HAProxy router fails to startup due to reading socket from old process

Issue

OpenShift HAProxy router is failing to startup successfully due to:

I1024 19:48:25.292577       1 template.go:260] Starting template router (v3.9.43)
I1024 19:48:25.298620       1 metrics.go:157] Router health and metrics port listening at 0.0.0.0:1936
I1024 19:48:25.486818       1 router.go:441] Router reloaded:
 - Checking http://localhost:80 ...
 - Health check ok : 0 retry attempt(s).
I1024 19:48:25.486861       1 router.go:228] Router is including routes in all namespaces
E1024 19:48:25.786031       1 limiter.go:137] error reloading router: exit status 1
[WARNING] 296/194825 (159) : Failed to get the number of sockets to be transferred !
[ALERT] 296/194825 (159) : Failed to get the sockets from the old process!