Thanks for getting in touch! I’m sorry to hear you’re hitting this same bug in the latest cloud version. Is it possible you’re hitting this other slightly different bug (that’s currently still open and current)? The cause of this one is common variables still applied to tenants after disconnecting from projects, where in that case the information is not surfaced at all in the tenant making it hard to diagnose. The workaround to that is to connect the tenant to any project and environment, and the deletion is allowed to go through.
If that doesn’t help, would you be willing to grant me explicit permission to create a support user for your instance to have a direct look at this? You can message me along with your instance URL via a personal message or email us at email@example.com for privacy.
I look forward to hearing back!