Nagios check_procs plugin is failing using NRPE or check_by_ssh

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Describe the bug
Up until the latest release I have been using check_procs on multiple firewalls with nagios successfully. I have always used NRPE and it worked fine. After the latest update check_procs is failing with unable to read output. All other check_* are working as far as I can see. This is happening on all firewalls I am monitoring (6 in total)

I tried switching to check_by_ssh on one of the firewalls and while this worked for about 2 hours it then stopped working with the same error.

This worked on the previous version and I have setup a new firewall and confirmed this.

To Reproduce
Steps to reproduce the behavior:

1. Setup NRPE services
2. Configure plugin with custom commands for NRPE
3. Add checks to nagios server using NRPE.

Expected behavior
The plugin should report back the number of running processes or zombie processes.

Relevant log files
Nothing in the NRPE Log

Environment
OPNsense 25.7.8-amd64
os-nrpe 1.1_1