CoreML model decryption fails after repeatedly loading the same model (iOS)

MLModel decryption fails after the same model is loaded some variable amount of times. Here is the error message:

2022-06-08 11:26:19.310357-0400 decrypt-bug-repro[312:5628] [coreml] Could not create decrypt session for /private/var/containers/Bundle/Application/684BF7E4-8573-49A2-9D26-02D2E4D9C4E2/decrypt-bug-repro.app/model.mlmodelc : error=Error Domain=com.apple.CoreML Code=9 "Failed to set up decrypt context for /private/var/containers/Bundle/Application/684BF7E4-8573-49A2-9D26-02D2E4D9C4E2/decrypt-bug-repro.app/model.mlmodelc. error:-42905" UserInfo={NSLocalizedDescription=Failed to set up decrypt context for /private/var/containers/Bundle/Application/684BF7E4-8573-49A2-9D26-02D2E4D9C4E2/decrypt-bug-repro.app/model.mlmodelc. error:-42905}

The number of successful loads before encountering the error seems to vary depending on how recently the iOS device was rebooted. Just after rebooting the device, I am able to load the model exactly 99 times before failing on the 100th attempt. Subsequent attempts to run my test app results in a progressively decreasing number of successful loads before failing. I have seen the number of successful loads go as low as one.

I am able to consistently reproduce this issue with the following sample code:

#include <CoreML/CoreML.h>
#include <Foundation/Foundation.h>

#include <atomic>
#include <csignal>

int main()
{
    static std::atomic_bool keepRunning = true;

    std::signal(SIGINT, +[](int) { keepRunning = false; });

    @autoreleasepool {
        NSBundle* bundle = [NSBundle mainBundle];
        NSString* bundlePath = [bundle bundlePath];
        NSString* modelPath = [NSString stringWithFormat:@"%@/%@", bundlePath, @"model.mlmodelc"];

        NSURL* modelURL = [NSURL fileURLWithPath:modelPath];

        int numSuccessfulLoads = 0;

        while (keepRunning)
        {
            NSError* error = nil;
            MLModel* model = [MLModel modelWithContentsOfURL:modelURL error:&error];

            if (error != nil)
                @throw [NSException exceptionWithName:@"Failed to load model" reason:[error localizedDescription] userInfo:nil];

            if (model == nil)
                @throw [NSException exceptionWithName:@"Model is nil" reason:@"Failed to init model" userInfo:nil];                  

            NSLog(@"Successfully loaded model (%d)", ++numSuccessfulLoads);
        }
    }
}

What is the cause of this issue? How can we prevent it from happening?