Simutrans crashes on fresh install

[Jan Evert van Grootheest]

I have installed a new computer with Ubuntu 20.04 a few weeks ago. I have now installed simutrans and tried to play it.
It crashes on startup. In the UI I have had the request to select a language. It crashes both for english and dutch (haven't tried any others).

Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal

$ dpkg -l simutrans\*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-===============-===============-============-=====================================
ii simutrans 120.4.1-1build1 amd64 transportation simulator
ii simutrans-data 120.4.1-1build1 all transportation simulator (base data)
ii simutrans-pak64 120.4.1-1 all transportation simulator (data files)

The end of the logs with 'simutrans -debug 5'

  Reading MIDI file '/usr/share/games/simutrans/music/49-Last-Sunday.mid' - Last Sunday
Calculating textures ...done
Warning: karte_t::create_rivers(): Too many rivers requested! (16 not constructed)
ERROR: karte_t::init(): Creating factories ...
For help with this error or to file a bug report please see the Simutrans forum:
http://forum.simutrans.com
Distributing 1 tourist attractions ...
Message: karte_t::init(): Preparing startup ...
Message: simmain(): Show banner ...
Segmentation fault (core dumped)

Unfortunately I don't know where the core has gone. It is not in the current directory.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Leonardo Müller (leozinho29-eu)]

I am facing a crash on this exact part of the loading process. The workaround I found was to set LC_ALL=C to make the game run. The backtrace is interesting: it seems related to the money_to_string function, the money value being shown is pretty strange: 20.000.0,0.0

My system uses the pt_BR.UTF-8 locale.

The backtrace is gigantic, but only three steps are being shown, I imagine I would need the correct debug packages to get more:

#0 __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:328
#1 0x00005555558d978d in money_to_string(char*, double, bool) (p=0x7fffffffefff "", p@entry=0x7fffffffbaa0 "20.000.0,0.0", f=f@entry=200000, show_decimal=show_decimal@entry=true) at utils/simstring.cc:107
        j = 0
        tmp = "200000,00\000\353R\265\224z\333\033\000\000\000\000\000\000\000U\300dUUU\000\000\000\253:WUU\000\000\016\000\000\000\000\000\000\000\200\241\356UUU\000\000\243\001\a\000\034\352\005\000\020\020}\365\377\177\000\000\000\000\300\002#\002\000\000\377\177\000\000\000\000\000\000\v\000\000\000E\001\000\000\000\000\000\000#\002\000\000\001\000\000\000E\001\000\000\216\241\356UUU\000\000\000S\353R\265\224", <incomplete sequence \333>
        tp = 0x7fffffffb990 "200000,00"
        i = <optimized out>
        l = 18032
#2 0x000055555570b0ff in win_display_flush(double) (konto=200000) at gui/simwin.cc:1704
        buffer = "20.000.0,0.0\000\353.R\265\224.z\333\033.\000\000\000.\000\000\000.\000U\300.dUU.U\000\000.\000\253:.WUU.\000\000\016.\000\000\000.\000\000\000.\000\200\241.\356UU.U\000\000.\243\001\a.\000\034\352.\005\000\020.\020}\365.\377\177\000.\000\000\000.\300\002#.\002\000\000.\377\177\000.\000\000\000.\000\000\v.\000\000\000.E\001\000.\000\000\000.\000\000#.\002\000\000.\001\000\000.\000E\001.\000\000\216.\241\356U.UU\000.\000\000S.\353R\265.\224z\333.,,,.,,,.,,\000.S\353R.\265\224z.ۻ\000.\000\000\000.\000\000\000"...
        disp_width = <optimized out>
        disp_height = <optimized out>
        menu_height = <optimized out>
        main_menu = <optimized out>
        old_inside_event_handling = <optimized out>
        time = 0x555555a771e0 <tick_to_string(int, bool)::time> "Verão Junho 1 1930 3:27am"
        status_bar_height = 15
        status_bar_y = <optimized out>
        status_bar_text_y = 547
        status_bar_icon_y = <optimized out>
        tooltip_check = <optimized out>
        right_border = <optimized out>
        pos = {x = -1, y = -1, z = -1 '\377', static invalid = {x = -1, y = -1, z = -1 '\377', static invalid = <same as static member of an already seen type>}}
        info = {capacity = 256, size = 9, buf = 0x555555b1f240 " (T=1,00)"}
        w_left = <optimized out>
        w_right = <optimized out>
        middle = <optimized out>