Samsung is reportedly seeking the return of its Galaxy Fold review units.

Having already delayed the Galaxy Fold's April 26 launch, Samsung is now reportedly retrieving review units after problems arose with screens on some of the foldable phones.

The company is asking reviewers to send the sample phones back, Reuters reported, citing an anonymous source, after some of them highlighted screen issues last Wednesday.

The problems affecting the $1,980 devices included screen damage, flickering and (in a single reported case) a bulge. CNET's Galaxy Fold review unit remains undamaged.

Samsung didn't immediately respond to a request for comment.

This reaction suggests that the company has learned from the 2016 Note 7 debacle, in which exploding batteries forced the company to discontinue that model.

Meanwhile, other foldable phones, including Huawei's Mate X and a rumored reconfiguration of the Motorola Razr, are poised to hit the market in the coming months.

First published at 3:28 a.m. PT.Updated at 3:47 a.m. PT: Adds more detail.