Windows Process Monitor Tool can provide insight into analysis problems

Check out the process monitor tool from Microsoft located here:  https://docs.microsoft.com/en-us/sysinternals/downloads/procmon 

This tool can help you see what is going on behind the covers during a CAST analysis.

If the analysis is ending without much information, you can use this tool to gather information on what is going on.

It can show files being processed as well as other actions going on the machine that might be contributing to the issue (such as an anti-virus tool).

This works best in an environment where only this analysis is running, otherwise the data may be difficult to separate out.

Here's a screenshot from the tool showing copybook files being examined by the analyzer: