I have used this module in many stores https://marketplace.magento.com/ontap-module-mastercard.html.
But for some reason in a new instance of Magento that I installed, it's not showing the payment methods from this module. The payment methods are enabled, I have run these commands:
1- php bin/magento setup:upgrade
2- php bin/magento setup:di:compile
3- clear and flush cache
4- Reinstall the module with different versions
Nothing seems to work. In Backend, I can see the module installed and the config options for the payment methods, but in frontend just the default Magento payment methods are shown.
Please help. Greetings!