The Galaxy S5 is sure to be one of the most popular smartphones of the year, but Samsung fans clamoring for the new handset may have to wait a bit longer than expected. That Galaxy S5’s planned release date could be facing delays due to lower than expected production yields on the device’s 16-megapixel camera lens, according to a new report from ETNews.

Citing industry sources, the Chinese site claims Samsung’s lens yields for the Galaxy S5 camera are at just 20 to 30 percent, which could potentially lead to delays in Galaxy S5 production and even its launch, which is expected to occur around the globe in April. ETNews adds that mass production of the 16-megapixel camera was initially supposed to start last month, but has already been delayed thanks to the complex process required to produce the camera module.

In an effort to keep Galaxy S5 production on track, Samsung’s purchasing officers are reportedly camping out at lens suppliers factories. However, the company expects production to pick up in the near future despite this early speed bump. “There may be difficulties in the earlier phase of production. However, we will be able to increase the yield within a short period of time,” an anonymous Samsung insider told the news outlet.

Samsung still hasn’t announced an official released date for the Galaxy S5 in the U.S., simply promising the device would be available on all major carriers sometime in April. If today’s rumor is true, the company may face a tough choice. Delay the launch into late April or release a limited number of units which quickly sell out. Neither option is great, though Samsung should be able to iron out any manufacturing issues rather quickly.