The error 'Unresolved software change limit reached' is an indication that the agent has exceeded the maximum number of unrecognized software events. This means that the agent will no longer detect any software changes.

To resolve this issue, we recommend reviewing the events and allowing software to minimize occurrences of such events. Once reviewed, you can reset the application control to generate a new inventory list and reset the events.

For further information on how to reset the application control, you can refer to this link:

https://help.deepsecurity.trendmicro.com/20_0/on-premise/application-control-reset.html