BecauseFRK suggestsrgeos andrgdal, it is vulnerable to:https://r-spatial.org/r/2022/04/12/evolution.html. Running revdeps on a platform withoutrgdal,rgeos ormaptools (butsp evolution status 2, usingsf for coordinate transformation and CRS definition), I see:
00check.log

MyMatrix is current R-forge development 1.4-2, because some of the packages I maintain also needed adapting.