However, the company decided to pull the update without any explanation. Even stranger, Nintendo has never done anything like this on the Switch. It is currently unknown what the reasons were and whether a modified firmware will return in the coming days.
Perhaps 12.0.3 contained files related to the Switch Pro, the existence of which has not yet been officially confirmed.
The update data was not completely removed from the servers, but the console reverted to the previous version 12.0.2.