Screengrab via YouTube GoPro reported really ugly fourth-quarter results on Wednesday.

The digital-camera maker posted an unexpected earnings loss as its growth slowed and new products failed to catch on with consumers as expected.

GoPro reported an adjusted earnings-per-share loss of $0.08 and sales of $436.6 million for the crucial holiday quarter.

Shares were halted for news pending just before the earnings announcement and fell by as much as 20% after trading resumed.

Analysts had estimated that GoPro posted $0.02 in adjusted EPS, near the lower end of a range of -$0.01 to $0.17, according to Bloomberg. Revenues were expected at $434.9 million.

Guidance for first-quarter revenue was lighter than expected, at $160 million to $180 million versus $287.2 million expected.

In the earnings statement, GoPro CEO Nicholas Woodman said the company saw the need to improve its software to make it easier for customers to edit content.

The company announced a personnel change, with Brian McGee as the new chief financial officer to succeed Jack Lazar starting March 11.

GoPro last month provided guidance for the fourth quarter that was below expectations.

The company had cited slower-than-expected sales and a lack of product launches in Q4; it announced plans to lay off 7% of its workforce.

During the latest quarter, GoPro cut the price of its new Hero4 Session model, raising analysts' eyebrows and prompting a downgrade on the stock from Morgan Stanley.

The concern was that this model, and others before it, were not quite catching on with consumers who could easily use their phones and other devices to capture and edit point-of-view footage.

GoPro shares had collapsed 80% over the 12 months before the company's earnings announcement, and they were down 71% from the price during the company's June 2014 initial public offering.