The phrase "initial hiccups" means that something is experiencing small problems or difficulties at the beginning, but these issues are expected to be temporary and will likely be resolved soon. Full definition
After initial hiccups, they found success and that gave rise to various online dating sites, networking sites and blogs for professionals to find partners in a convenient way. (articlesfactory.com)
Indian GDP growth is highest in the world till date in 2017 inspite of some initial hiccups due to slow implementation of GST and slightly lower GDP forecast for 2018. (afund.com)
After some initial hiccups we're going forward guns at the ready. (wccftech.com)