Bug: Same bridge, different results!

[JAKA]

The bridge fails to one side, because you probably didnt use crossbeams

[bmowrey]

I believe I found a bug where I have the exact same bridge, however in one case the truck makes it across fine, and in the other case the truck crashes.  There is no difference between the bridges; found this bug when copying and pasting the entire bridge.

Download http://home.att.net/~bmowrey/Pontifex/Samebridges.zip" target="_blank">Samebridges.zip for the files.  Play with it and see if you get the same results!

For the good bridge, the truck always makes it across regardless of the timing.  For the bad bridge, the truck sometimes makes it across, but never if started immediately (using pause/restart/test/unpause) or if started after 20 seconds.

What's going on?!?   The bridges look exactly the same!!  Please help me understand the difference here.  Thanks!  http://www.pontifex2.com/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>

[Ravean]

Make sure the level has some wind setting.  This will make sure that bridges with no cross support do not take a while before they collape sideways.

[Tyro]

Nope, I cant see the difference. Mind you, the good bridge fails at 25 seconds on my PC. Did you build them in a different order or just copy the file?

[bmowrey]

Ah, you are right.  The 'good' bridge does fail if you wait longer than about 15 seconds to start; I don't know why that is.

However, my question remains: why do the bridges act differently, even though they are the same in construction, same price, everything?

I didn't copy the file, and I discovered this by accident: I was playing with the bridge, and copied the entire bridge off to one side to try something different.  When I copied it back, it didn't work anymore, even though all the links where there and the price was the same.  I am just using the copy/paste functions inside Pontifex II.

Argh!  It feels like this program has something wrong with vehicles passing over bridges that I can't control with construction.