Hi NoLand and welcome to the forums
There are some open bugs which you may ran into.
As you play a debug build, can you start it from a command line and provide the error message if there is any?
It would also be good if can upload that save game some where and provide a download link (File hoster, dropbox).
firstly I should say that I am not at all a computer expert. I just go in the Internet and read what to do if I want to have something. This was the case with my Linux installation and with my Widelands version, too. With Linux Suse I found only Widelands 18 in the repositories and so I installed the version 19 by myself with a combination of xterm instructions and the help of YAST (not all libraries are listed in the Widelands installation description for Suse: libraries ICU and libicu_devel are missing) and I may have fetched a wrong version – I only wanted the “normal one”.
I tried to start from command line but I was not able to do it correctly:
I went to the alias of Widelands which is located on my desktop and looked under properties where the program widelands is located (because I forgot it)
Then I opened an xterm, went in the indicated directory and started Widelands
The program starts
But the window for selection of the stored files was empty, so I am not able to start any saved game file and also not the one with “The Nile”
I think the best idea for a lazy person like me would be to wait until Widelands 19 is officially a part of the Suse repository and then install / update my computer completely new (widelands 19 official version and operating system (where also a lot of things like flashplayer are still missing)).
In the meanwhile I can try the remaining 3 maps of Widelands.
Thanks for your support.