Poink88
Imperial Masterpiece
I have run across pine bark that was cut as trees and moved thru salt water for processing.
end result was dead bonsai, that sickened slowly.
Salt is a totally different factor...note that same can happen to deciduous tree bark supply.
FYI, most probably were exposed to salt water while being transported. That is how they are done in Asia at least and most if not all wood there are broad leaf. YMMV