Apple has run into “more issues than expected” with its foldable iPhone, which may delay its release, according to the Japanese business newspaper Nikkei. Multiple sources report issues that apparently occurred during early test production phases and may delay first shipments by months.

Component suppliers have supposedly been notified that the foldable iPhone’s production schedule will be delayedand Apple is working to address the problems. Apple was reportedly prioritizing the foldable iPhone and other premium models for its September event this year, due to constrained supplies — that whole