According to The Wall Street Journal, Nintendo is pushing back the introduction of larger 64GB game cards for the Switch. Nintendo had planned to make them available during the second half of 2018, but has reportedly told developers that they would have to wait. The reason is reportedly due to technical issues. Kotaku reports:As Kotaku previously reported, Nintendo's Switch games keep their size slim, with downloads for Super Mario Odyssey, Arms and Splatoon 2 ranging from 2-6GB. However, third party developers have been releasing bigger, data-heavy games, outpacing the Switch's 24GB of usable onboard memory.The Journal notes that Nintendo has already sold over 10 million Switch consoles, meaning developers could continue to flock to the platform, regardless.