Hi Randy and welcome to Reaperland!
Dunno whether this helps, but at least you could try "File -> Project Settings -> Project Settings" and tick "Force project time signatures to have beats on whole samples".
It might be the case, that this not only works on time signatures, but on regions and markers as well.
Maybe it's best to undo the region changes in question first, activate the checkbox and move the regions again.
HTH
-Data