Error occurs anytime both addons are installed for TotalRP3 v1.4.4 and Storyline v3.0.0. Storyline individually works fine. TotalRP3 enabled causes the error when talking to NPCs.

Bug captured with BugSack/BugGrabber

13x Storyline\lib\Ellyb\Tools\Transitionators.lua:62: attempt to index field 'Easings' (a nil value)
Storyline\lib\Ellyb\Tools\Transitionators.lua:62: in function RunValue' Storyline\logic.lua:189: in function callback'
Storyline\lib\Ellyb\Tools\Promise.lua:76: in function Always' Storyline\logic.lua:297: in function <Storyline\logic.lua:198> Storyline\events.lua:828: in function callback'
...ddOns\Storyline\lib\Ellyb\Tools\EventsDispatcher.lua:68: in function `TriggerEvent'
...faceStoryline\lib\Ellyb\Tools\GameEvents.lua:53: in function <...faceStoryline\lib\Ellyb\Tools\GameEvents.lua:51>

Locals:
self =

{
class = {
}
}
startValue = 0
endValue = 1
overTime = 0.5
callback = defined @storyline\logic.lua:179
customEasing = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index field 'Easings' (a nil value)"
Ellyb = {
}
_p = {
(null) = {
}
(null) = {
}
(null) = {
}
(null) = {
}
(null) = {
}
(null) = {
}
(null) = {
}
(null) = {
}
}
GetTime = defined =[C]:-1