I also have this problem. It does not happen on ubuntu 10.04 with the widelands version r6655. Then I updated the system to ubuntu 12.04 and installed a newer version >r6655 since then, there is the bug.
Anyone tried r6655 on ubuntu 12.04? I can't compile it myself because of https://bugs.launchpad.net/widelands/+bug/1209125
I also have this problem. It does not happen on ubuntu 10.04 with the widelands version r6655. Then I updated the system to ubuntu 12.04 and installed a newer version >r6655 since then, there is the bug. /bugs.launchpad .net/widelands/ +bug/1209125
Anyone tried r6655 on ubuntu 12.04? I can't compile it myself because of https:/