Payments from Commerce 1 don't update the order balance (total paid)

This still needs work, am seeing the same problem.

I wonder if this fails because the commerce_payment_method table does not have records added? I started an issue to cover that table: 🐛 Create commerce_payment_method records Needs work

I ran the migration plugin from 🌱 [META] Payment problems with Commerce 1 migration Active and the payments page now shows the payment(s) total as the "total paid" value and the "order balance" field now show $0. As it should be.

Two machines: prod and dev
Same commerce release: 8.x-2.36

Having the issue on the prod
No such issue on the devel machine

update: order with broken balance has a NULL value "total_paid" field.

In my case, it turned out it was caused by a broken custom module.
With no error message displayed at payment submission, a "Headers already sent error" in the /admin/reports/dblog helped to find the way.