@Rik Jansen​ :

It seems like you're encountering a bug with the IP Access List API. It's possible that even though you have disabled the IP Access List feature, there might still be some residual settings or configurations that are causing this error.

One possible workaround could be to temporarily enable the IP Access List feature, add the necessary IP addresses to the list, and then disable the feature again. This way, you can add the IP addresses you need without blocking the current IP address.

Another option could be to contact the support team for the API or the platform you're using and report the issue to them. They may be able to provide more information or suggest a fix for the problem.

In any case, it's important to ensure that the security of your workspace is maintained, so it's good that you're taking measures to control access to it.