HeartBeat Interval is not working in OPC Publisher 2.9.11

[vity-topsoe]

Describe the bug
HeartBeat Interval is not working , For Tags whose value is not changing ,OPC Publisher is not emitting those.

To Reproduce
Steps to reproduce the behavior:
1Apply OPC Publisher 2.9.11
2. Set -hb =36000
3.

Expected behavior
All nodes which are not changing values ( we have set OpcSamplingInterval to 5 minutes) should emit last known value

Screenshots

OpcPublisher Configuration
"Cmd": [
"publisher",
"--pf=/appdata/publishednodes.json",
"--lf=/appdata/publisher.log",
"--aa",
"--me=Json",
"--mm=PubSub",
"--fm=false",
"--cfa=true",
"--fd=false",
"--bs=250",
"--si=10",
"--di=60",
"--tm=True",
"--ih=Mqtt",
"--hb=3600",
"--ot=300000",
"--tp=/appdata/pki/trusted",
"--rp=/appdata/pki/rejected",
"--ap=/appdata/pki/own",
"--ip=/appdata/pki/issuer"
],

OPC Publisher version 2.9.11
Number of Nodes : 416

Additional context
Add any other context about the problem here.

[vity-topsoe]

@marcschier Some more Information : We tried it on Matrikon Simulation server (OPC UA).It seems working fine however with Aspen InfoPlus.21 OPC UA Client .It is not working.

We recently switched from 2.8 to 2.9