Can't preview previously working queries: "specified key is not a valid size for this algorithm"

[Anonymous]

I am finding this message in many of my previously working queries:

Error Message: The specified key is not a valid size for this algorithm. Parameter name: key Stack Trace: Microsoft.Mashup.Evaluator.Interface.ErrorException: The specified key is not a valid size for this algorithm. Parameter name: key ---> System.ArgumentException: The specified key is not a valid size for this algorithm. Parameter name: key ---> System.ArgumentException: The specified key is not a valid size for this algorithm. Parameter name: key at System.Security.Cryptography.AesCryptoServiceProvider.CreateEncryptor(Byte[] key, Byte[] iv) at Microsoft.Mashup.EngineHost.Services.EncryptedPersistentCache.EncryptedStorage.EncryptPage(Byte[] input, Int32 count, Byte[

I think it came randomly so I cant manage to identify why this is happening. Any clues?

Regards

[v-qiuyu-msft]

Hi @Anonymous,

Would you please share detail steps for us to reproduce the issue? How about the result when you run the most recent desktop version 2.45.4704.442 64-bit (April 2017)?

Best Regards,
Qiuyun Yu