Certain Plarail items on Amazon Japan might remain out of stock for months.

Okay, I was on Amazon Japan that there some Plarails that haven't been in stock for quite some time (The ones that are still in production, not discontinued). Who knows what's going on? I wonder how often Amazom Japan stocks these items? Could it be the current pandemic putting these items out of stock for long periods of time?

Here's Edward and Henry (The 2018 versions) for an example: 



I might hopefully be getting my hands on Plarail TS-10 (For a custom), TS-18 (For a detailed custom), & S-57 (An as is and for a custom) sometime next month when they're in stock hopefully at the time.