Unable to start a new Family Sharing after leaving the old account

Left family sharing, but cannot start a new one. Getting error message that my ID is already part of another family sharing. Any articles that say how to leave family sharing - I’ve done all these steps from my iPhone and via apple’s desktop site.

Did all the steps to leave a family group - both from iPhone and from logging into Apple ID site. Restarted my phone etc. Despite this, cannot start a new family sharing group. Very frustrating and has a financial impact, because as a result I cannot share my apple one subscription with my husband, who needs to continue to pay for his. Even though I should be able to share with 5 people.

[Edited by Moderator]