Curse

I have the tracker installed. Since a while i only see the 2 diamonds, but not the windows with the arrows. I deleted and reinstalled it, but still the same Problem! Hope somebody can help...

Festering Boil has two (3) locations.  If you highlight one you've been to it highlights them both. 

The location of Rendfang in Stonefield is off, it can be found at about  (5750, 4800)

Same here, i CANNOT get this to show up at all. Double checked my addon folder & there is nothing wrong with it. No unnecessary sub-folders, etc. Curse installer says it's installed it, it shows up in the addon folder, but will not load (and subsequesntly disappears from the Curse Client list of addons.) I've deleted it, manually downloaded & dragged unzipped folder to Addon Folder & it still does not work. I've installed a few other addons in the past few days with zero problems, so not sure what is up with this one. I'm on a Mac, for what it's worth & never had a issue before.

I found Ranger Fahrand a fair bit away from the objective location (per the interface 255m away) He was on top of the hill at the outside corner of the building at 1973,7388 so perhaps he has a 2nd spawn point.

Hi!

First of all: THANKS for this wonderfull addon!

Here are a few corrections and additions (at least the german and english names are confirmed!)

Droughtlands
One must not search for "Enraged Scarab" because you have to find a "Strange Mound" and attack it. There are three waves of scarabs, and the one we're searching for is in the last wave. So you'll never find this mob like all the others...
Add the following line to the Droughlands section:

            { n={["EN"]="Strange Mound", ["FR"]="Tertre étrange", ["DE"]="Seltsamer Hügel"}, x=7580, z=6645},

Iron Pine Peak
Swirling Tempest's correct german translation is "Sausender Wirbelsturm".
Besides the wrong translation, this rare has a huge path and spawns in "Howling Caves".
Replace the original line with the following lines in the Iron Pine Peak Section:

            { n={["EN"]="Swirling Tempest", ["FR"]="Tempête tourbillonnante", ["DE"]="Sausender Wirbelsturm"}, x=3644, z=1560, t="[1]"},
            { n={["EN"]="Swirling Tempest", ["FR"]="Tempête tourbillonnante", ["DE"]="Sausender Wirbelsturm"}, x=3560, z=1605, t="[2]"},
            { n={["EN"]="Swirling Tempest", ["FR"]="Tempête tourbillonnante", ["DE"]="Sausender Wirbelsturm"}, x=3969, z=1722, t="[3]"},
            { n={["EN"]="Swirling Tempest", ["FR"]="Tempête tourbillonnante", ["DE"]="Sausender Wirbelsturm"}, x=3788, z=1251, t="[4]"},
            { n={["EN"]="Swirling Tempest", ["FR"]="Tempête tourbillonnante", ["DE"]="Sausender Wirbelsturm"}, x=3696, z=1265, t="[5]"},

Eastern Holdings
As Amagednon already said, the mob "Plaguefang" is missing...

Add the following line to the Eastern Holdings Section:

            { n={["EN"]="Plaguefang", ["FR"]="Peste-croc", ["DE"]="Seuchenhauer"}, x=7821, z=7376},

Moonshade Highlands
As Swirling Tempest, Nytami also has a huge path he's walking. Using the coordinates used in RareTracker, there's only a slim chance to find him.
Add the following Lines to the Moonshade Highlands to widen the search range:

            { n={["EN"]="Nytami", ["FR"]="Nytami", ["DE"]="Nytami"}, x=6460, z=1349, t="[1]"},
            { n={["EN"]="Nytami", ["FR"]="Nytami", ["DE"]="Nytami"}, x=6556, z=1528, t="[2]"},
            { n={["EN"]="Nytami", ["FR"]="Nytami", ["DE"]="Nytami"}, x=6750, z=1321, t="[3]"},

the second position I saw on a couple of videos on youtube and the third is the one where I killed him half an hour ago :)

is there any way u can put a suppressmacro failure in this addon due to it spams my chat box saying can not target or let us have a check box to turn that thing off ?

I noticed that in Eastern holdings Plaguefang is missing.  Possibly one of the easiest to get to/check on since many go into the zone via the nearby portal.  He is at (approximately) 7843,7408