Sing post teleports me to a location where a waystone does not exist anymore... was there before, but I moved it.

Minecraft: 1.10.2
Version: signpost-1.10.2-1.05.5
Forge: 12.18.3.2316

See full list of mods below (LordDan's Banished 2 modpack, plus upgraded forge and some mods)

'[MC 1.10.X] BetterCombatMod 1.4.jar'
1.10.2-ExpandedIndustry-1.1.0b.jar
1.10.2-HardLib-v1b.jar
agricraft-2.0.0-0.10.0-a18.jar
animania-1.10.2-1.1.5.jar
antiqueatlas-1.9.4-4.4.5.jar
AppleCore-mc1.10.2-2.2.0.jar
AppleSkin-mc1.10.2-1.0.5.jar
'Better With Mods-0.14.24-1.10.2.jar'
betterbeginnings-MC1.10.2-b0.9.8-R6d.jar
BetterFps-1.4.5-1.10.jar
boatifull-0.4.0.jar
Chameleon-1.10.2-2.3.0.jar
'Claycraftmod v3.0 - MC1.10.2 Forge.jar'
compatlayer-1.10-0.2.9.jar
CoralReef-1.2.jar
CraftTweaker-1.10.2-3.0.26.jar
'Customized Dungeon Loot 1.10.2 (v.1.0.1).jar'
'CustomMobSpawner 3.10.1.jar'
dropanything-1.10.2-0.0.1.jar
"DrZhark's Mo'Creatures Mod-10.0.6.jar"
DynamicSurroundings-1.10.2-3.4.5.6.jar
EnderZoo-1.10-1.2.3.44.jar
Farseek-1.9.4-2.1.jar
FastLeafDecay-v11.jar
FatSteve-alpha-0.0.4.jar
finite-water-control-1.10.2-1.0.jar
FriendlyFire-1.10.2-1.3.0.jar
h3ntlibs
HardcoreDarkness-MC1.10.2-1.9.jar
hardcoreore-1.10.2-0.0.32.jar
HardModeTweaks-1.10-1.2.2.jar
HungerOverhaul-1.10.2-1.1.0.jenkins118.jar
Hwyla-1.8.17-B31_1.10.2.jar
incontrol-3.5.5.jar
infinitylib-0.10.0.jar
itlt-1.10-1.0.0.jar
jei_1.10.2-3.14.7.420.jar
LunatriusCore-1.10.2-1.1.2.38-universal.jar
materialchanger1.0-1.10.2.jar
MCA-1.10.2-5.2.3-universal.jar
mobends-0.22.5_for_MC-1.10.2.jar
MTLib-1.0.3.jar
MultiMine-1.10.2.zip
NewWorldOrder-1.10.2-1.0.0.jar
PotionCore-1.5.2_for_1.10.2.jar
PrimalCore-0.2.39.jar
QualityTools-1.0.4_for_1.10.2.jar
RadixCore-1.10.2-2.1.3-universal.jar
RealisticItemDrops-1.0.9.jar
RTG-1.10.2-4.2.0.0-snapshot-3.jar
signpost-1.10.2-1.05.5.jar
simplebarrels-1.26e.jar
simplebedding-1.0.0.jar
simulatednights-1.11.2-1.2.0.jar
SoundFilters-0.9_for_1.9.4.jar
special_ai-1.10.2-1.1.3.jar
SpiceOfLife-mc1.9.4-1.3.8.jar
Stackie-1.10.2-1.6.0.44-universal.jar
'Stellar API-0.5.4.1.4.jar'
'Stellar Sky-0.5.5.1.9.jar'
stg-1.0.2.jar
StorageDrawers-1.10.2-3.7.9.jar
Streams-1.9.4-0.3.jar
structpro-3.8-1.10.2.jar
Survivalist-1.10.2-1.10.1.jar
ThingsThatMatta-1.10.2-r1.jar
ThirstyBottles-1.10.2-1.0.1.0.jar
Timberjack_1.10.2-1.5.jar
ToughAsNails-1.9.4-1.1.1.21-universal.jar
UndergroundOcean-1.1.0_develop_a69b2f0_alpha.jar
'VisibleArmorSlots[1.10.2]-2.1-legacy.jar'
WearableBackpacks-1.10.2-1.7.0.jar
wolfarmor-1.4.1.0.jar
WTF-Expedition-Gameplay_1.10.2_v-1.1.jar
WTF-Expedition-WorldGen_1.10.2_-v1.5.1.jar