I’m experiencing the same issue 🙁
It almost seems like the plugin renders after Woocommerce has already formed the page in browser, then it overwrites it – and that is why we momentarily see the default Woo range pricing?
Does anyone have a solution?
Never mind. The issues seemed to be caused by trying to remove the Mailpress plugin by moving/renaming the folder on the server, instead of running the uninstall via WordPress Dashboard. All seems well for now.