Mongo 6.0.20 to 8.0.4 update: Memory usage issues!!

Hello, we are having a problem that I imagine is due to some basic configuration that I might be missing. Currently, I am using version 6 of MongoDB and migrating to version 8. I am experiencing a behavior where, in version 8, MongoDB utilizes all the machine’s memory, and when it reaches the limit, the MongoDB service stops. In version 6, the same query and the same database do not cause this issue.
I have already checked the ‘allowDiskUse: true’ variable in the query and also the ‘storage: wiredTiger: engineConfig: cacheSizeGB: 12’ variable properly configured, but without success. The service still crashes. Do you have any tips for adjustments?