Issues connecting to Redshift Serverless via DBeaver and DataGrip

[GitToby]

What I have:

• a Redshift Serverless instance (publicly accessible)
• an admin user
• a user/pass user
• me, an IAM user

I then try to connect to the workgroup using the following URL:

jdbc:redshift:iam://[wg-name].[account].[region].redshift-serverless.amazonaws.com:5439/dev?profile=[my profile]

I get the following error in dbeaver:

And this is DataGrip (using no-auth just uri and using the builtin AWS Credentials auth):

DBMS: Amazon Redshift (no ver.)
Case sensitivity: plain=mixed, delimited=exact
[99999] Something unusual has occurred to cause the driver to fail. Please report this exception:Invalid property format: no = character is found on line 15
Invalid property format: no '=' character is found on line 15.

notes:

• Both have SSL turned on.
• Both tools can connect using the non iam jdbc URL with user/pass auth, where the values are pulled from aws redshift-serverless get-credentials --workgroup-name[wg-name]
• other user/pass users work fine
• Console query access via iam federated access works fine too.

How can I correct the tools settings to use the iam profile auth correctly?