Does Zoho Reports AUTOMATICÅLLY delete views when custom columns are changed?

Does Zoho Reports AUTOMATICÅLLY delete views when custom columns are changed?

We made a few changes to custom columns in our Contacts table in the CRM yesterday. All seemed fine. This morning when I went to continue working on the queries, it shows that MOST of my queries have been deleted. I suspect this has to do with the fact that the deleted columns are in these queries. But now I can't even open them, restore them, view the design. I had no warnings when changing the columns that this would DELETE related queries/views.

Please advise. Or please work with us to restore.

Thanks,

Kim