Track & signal crews have been busy getting mainline reliable; some track issues apparently are "leftovers" from the old layout that were never fully addressed. Two manifest freights are now about 95% reliable. Yard seems to be OK except for some switchpoint power issues. Updated JMRI to version 4.20 due to some strange things happening with Loconet. Before that, had to "manually" clear the slots from the command station. Dozens of them were full of erroneous information and version 4.18 would not clear them. It also would not read consist info. Humidifier seems to have stabilized the house level around 35-40%.