Including Kd_bkgnd in diag table causes runs to fail

[knlowman]

I'm running a modified version of CM2G that uses MOM6, SIS2, AM2, and LM3. If the Kd_bkgnd diagnostics (both from ocean_model and ocean_model_z) are included in my diag table, the runs always fail about 9 months and 25 days into the run, regardless of the run start date and the value of KD_ADD. The error always resembles:

srun: Terminating StepId=135061639.0+0
srun: Terminating StepId=135061639.0+1
slurmstepd: error: *** STEP 135061639.0+0 ON c5n1551 CANCELLED AT 2024-07-09T12:28:45 ***
srun: Force Terminated StepId=135061639.0+1
forrtl: error (78): process killed (SIGTERM)```