WowAce

What steps will reproduce the problem?
1. Heal a target with healing prediction on(incoming heals).
2. Both the bar and text are massively innacurate

What is the expected output? What do you see instead?
Healing prediction is usually within 10%-15% of the actual non-crit heal since it's the average
of the spell range. However, the prediction is about half of the actual heal, sometimes lower.
So if a Holy Light heals for roughly 5k, it will show ~2.5k. The wrong value is for both the text
and bar length.

What Grid2 version and language of WoW are you using?
r722 and EN-UK

Please provide any additional information below.
As far as I know prediction information is provided by blizzard's API, so this is most likely an
error on their side(It has happened before). However, I am a bit surprised because I couldn't
find anyone mentioning it in either the game's forums or addon website so I decided to post
it here.

Hi again, using this code:

local frame = CreateFrame("FRAME", "IncomingHealTest");
frame:RegisterEvent("UNIT_HEAL_PREDICTION");
local function eventHandler(self, event, ...)
 local healIn = UnitGetIncomingHeals("player")
 print ( "being healed for " .. healIn )
end
frame:SetScript("OnEvent", eventHandler);

I confirmed that this should be on Blizzard's side. HL shows prediction for 2581, but heals for 5199. Which is half. FoL shows 1940 but also heals ~5k (Pretty weird how HL always heals for the same amount but FoL has a 400ish heal range)