Hi
I have a problem with an old project, I opened it with Blender 2.78. Now I want to scale an object inside but there is a problem with the axes, when i scale the object with z axe, the y axe move in the dimension of the object…
There is no problem for x axe…
I tried to find an answer but i failed, thanks to help me 
I know you probably have… but have you tried applying the scale/location?
If nothing else works, make a new object with the same origin, say a cube. Name it New. Then rename the object that has problems, call it Old. Open in in edit mode, select everything, and hit P to ‘separate selected’. Then exit edit mode, select the new version of the mesh only (should be Old.0001 or something like that), then select the cube New. Then hit J to join them. Then select New, then Old, which now has no mesh in it (you’ll have to find it by name in the outliner). Then use Make Links to put your old materials, modifiers etc onto New. Do these one at a time though, so you don’t make links to whatever was causing the problem, and test it by scaling every time. Then delete Old. Problem should be gone.
I finally restart my project I did not try your solution but thank you for your answer
Well, remember that workaround. It lets you keep all the work you’ve done on the base mesh while getting rid of whatever it is you can’t figure out. I’m self taught, so I have problems like that a lot myself. Things I probably should know, but haven’t learned yet.