Problem solved !
The culprit was a joint
in a pack of 2
far from its twin
in a sub sub assembly
I found it by loading each sub-assembly one after the other and checking the extent of the three plans by doing "new sketch".
As soon as the plans became huge I opened the sub-assembly in another...
Thank you PhoeNX, I'm honored and a little impressed to see that it's the writer who answers!
I tried the technique without success, I even repeated it on all the layers and nothing either.
I dig a little and find this pdf useful.
Still have my problem but maybe it will help other.
https://phoenxplm.com.au/files/tips_tricks/TipsTricks_201510_WhereAreMyObjects.pdf
a+
Hello,
I work with an assembly around 3m x 4m x 4m and i don't know why but when i hit "Fit view" it takes me so far away that the part becomes 1 pixel.
I thought there was a small element of the assembly like a screw that wanders very far from the rest but after checking I don't think so...