CAM-SIMA fails to run in debug mode with NAG compiler

### What happened?

Running CAM-SIMA with the nag compiler (compiler/nag/6.2-8.1.0) in debug mode results in a dangling pointer error in the framework. It is possible this is a compiler bug, so we should try a newer version of nag to determine this.

### What are the steps to reproduce the bug?

Set up a FKESSLER case with the ne5 grid and the nag compiler. Set DEBUG=true and then build/run.

### What CAM-SIMA hash were you using?

aa92868

### What machine were you running CAM-SIMA on?

CGD machine (e.g. izumi)

### What compiler were you using?

NAG

### Path to a case directory, if applicable

_No response_

### Will you be addressing this bug yourself?

No

### Extra info

_No response_

Reproduce the issue with a FKESSLER case on the ne5 grid, using compiler/nag/6.2-8.1.0 and DEBUG=true on a CGD machine such as izumi. Compare the dangling-pointer error with a newer NAG version and record whether the behavior changes for CAM-SIMA hash aa92868; done means determining whether this is compiler-version-specific or requires a CAM-SIMA fix.

Written by the indexing model from the issue text.