I had the same thing with over 400 subscriptions.
In the end I rolled back Woocommerce to the previous version.
I then had to go into the server database and edit the subscriptions.
Woocommerce had changed them all to manual review / simple products.
Lost several hours to this yesterday.
It had changed the subscriptions to:
_requires_manual_renewal=true
_payment_method=
_payment_method_title=Manual Renewal
But should have been configured like this in my system:
_requires_manual_renewal=false
_payment_method=stripe
_payment_method_title=Via Pay with Debit or Credit Card
Hope you manage to get it sorted. It was a nightmare day yesterday.
I won’t be updating it again without fully testing in local server environment.