Path line does not show from kml file

Hello,

I have a website for hikers in the Netherlands. On the maps there are accommodations where hikers can spent the night such as B&B, campings, etc.

This accommodations are swohn on different maps with paths from kml files.

All goes well except the following.
There is a map where I show all accommodations (about 1000)and all paths (33).
When I put these paths on the map severel paths show but there are paths which do not show however they are on the map (there is no line). And when I put such a path on the map all other paths do not show either.

You can see the problem on www.wandelenovernachten.nl menu Alle paden en accommodaties . There are a lot of paths but no lines.


Can you give a hint or solution?

Thanks

Hi

May be you break google's API limits

developers.google.com/kml/documentation/mapsSupport