Board Thread:LotR Mod Technical Support/@comment-30952357-20170611020350/@comment-30645975-20170611024929

Oh dear. The "White map bug" has been a bit of a plague upon the Tech Support for quite a while. Some things to try:
 * Using recommended RAM
 * Setting your graphics and render distance to low/moderate amounts
 * Updating your graphics drivers
 * Updating Forge (if you don't know how to, we can help you)

Please try these and let us know if anything works, many others have had this problem.