Issues Connecting Snowflake Agent: PEM Private Key Parsing Error

[Snowflake user PEM private key not parsed] Hello team, Since a few days i'm experiencing issues to connect an agent to Snowflake via Key Pair:

The user pub/p8 keys are correct since I can connect to Snowflake via Snowsql
The Snowflake Admin connection is correctly configured in Dust since I can see the Snowflake tables allowed for dust

Unfortunately when the Agent needs to query Snowflake i'm getting the following error:

Error running TablesQuery app: Error creating session: decode error: Failed to parse private key: PKCS#1 ASN.1 error: PEM error: unexpected PEM type label: expecting "RSA PRIVATE KEY"

It seems there are 2 different behaviors between the Snowflake Admin connection key parsing method and the Agent connection. Can you help me please ? Thank you in advance