In the test server I have a couple of DAF XF Artic truck running with piece/cooled goods and livestock just fine. But when I attached a bulk cargo trailer, I could not get it out of depot. It had an axle load of 14t, so I had to upgrade part of the road network and then it went to load its cargo. But then again it could not depart when fully loaded. The error message says Vehicle weight 14 t but max weight is 0t. Hmm, very confusing, I was looking if I could find some forgotten tile of bridleway or mothballed road, but did not find anything. At las I found out that it was a bridge that had lower _total_ weight limit than the loaded truck.
In general, checking weight limits is quite problematic. Would it be possible to:
a) fix the info about weight limits (axle/total) encountered
b) have a hyper link to the tile which can not be passed by the vehicle in question?