problem solved
first command
for i=1 to mapPaths.count() do print (mapPaths.get i)
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps"
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps\glare"
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps\adskMtl"
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps\Noise"
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps\Substance\noises"
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps\Substance\textures"
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps\mental_mill"
"D:\Program Files\Autodesk\3ds Max Design 2013\Maps\fx"
"C:\Users\Miru\Documents\3dsMaxDesign\downloads"
"d:\Program Files (x86)\Itoo Software\Forest Pack Pro\distmaps\images"
"d:\program files (x86)\itoo software\forest pack pro\maps\HShadows"
"d:\program files (x86)\itoo software\forest pack pro\maps\Standard"
"d:\program files (x86)\itoo software\forest pack pro\maps\Classic"
"d:\Program Files (x86)\Itoo Software\Forest Pack Pro\lib\3D\HQPlants\Free Models\maps"
"G:\_000 Biblioteci 3DMAX\ITOO\HQ Plants Catalog\lib\HQPlants 1\maps"
second comand (added "print" in front of it)
print (mapPaths.getFullFilePath "eucaliptus_bark_1.jpg")
""
So the result was empty.
Checked if picture is in maps. It was at G:\_000 Biblioteci 3DMAX\ITOO\HQ Plants Catalog\lib\HQPlants 1\maps
Then I installed 395 on top of 396 and started 3dmax.
When created a forest object a message told me that I don`t have a licence.
Opened the licence manager and I stopped the server and than started it again.
Reopened 3dmax, and now the object worked and all the tree choosen didn`t generate the path messege. So all ok.
Then reinstalled 396 on top of 395. Than restarted the server in the licence manager(I felt that this can be reason...Anyway maby not because I also restarted computer from yestarday and the problem was today too)
Than started 3dMax and all worked perfectly.
Runned again the second script command
and receicved the path (not the empty string)
"G:\_000 Biblioteci 3DMAX\ITOO\HQ Plants Catalog\lib\HQPlants 1\maps\eucaliptus_bark_1.jpg"
So glad it worked
Still don`t know what was the problem. Maybe the result (empty string) from the second script at first 396installation is a good indicator for you.