Version 2022.4.1 with NPM, NCM and NTA installed.
I'm having the same issue with Error message 'There was an error processing the request' appearing when trying to do anything with NCM. NPM and NTA working fine.
I have tried replacing the 'SolarWinds.InformationService.Linq.Plugins.NCM.dll' as described here Thwack thread and support have suggested trying the following Manually repair the SW collector and SW Jobenginev2.
Waiting on support coming up with a fix. But wondered if anyone had any other solutions from a support case.
Thanks