teething troubles

British  

plural noun

1. the difficulties or problems that arise during the initial stages of a project, enterprise, etc

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Example Sentences

There are plenty of ministers and staffers who will of course say loyally that No 10 is now firmly in control after understandable teething troubles, who are also somewhat fed up with the noises off.

From BBC

Last year, Lidl put up a spoof blue plaque at its Newton Heath store, reflecting Liam Gallagher's claim he would gig at the store if shows at the Co-op Live arena could not go ahead, amid teething troubles at the venue when it first opened.

From BBC

The event kicked off in Milton Keynes last summer but suffered teething troubles, when fans were stuck in long queues.

From BBC

Supporters of the Saudi crown prince's ambitious project for opening the kingdom up to the world say these are teething troubles, inevitable when such a traditional culture is undergoing such huge changes.

From BBC

Whether this reflects teething troubles or a fundamental shift is unclear, and the changes have been welcomed in some quarters.

From Seattle Times