It is just the latest in miserable news for GoPro, which last week downgraded holiday forecasts to $600 million to $650 million in revenue for the fourth quarter, below analysts average estimate of $666.14 million due to production problems with the Hero 5 Ultra HD Action Camera.

Wall Street analysts think that the outfit might be rushing a bit fast to get products on the shelves and this might have resulted in a few too many cock-ups.

The company said it plans to resume shipment of Karma as soon as the issue is resolved. However GoPro said it would refund the purchase price rather than replace the drones, which were bought by consumers since 23 October.

GoPro launched Karma, its first consumer drone, in mid-September. It was already delayed so it is unclear why the problem was not spotted. In some ways the delay was fortunate, as were the production issues the company had which lead to fewer Karma drones being launched than planned.