With the attached dia file, when I try to export it to a "shape" file, dia dies on me (usually with a segfault) and with a message like this one: *** glibc detected *** dia: invalid fastbin entry (free): 0x09daf2d8 *** Doing the same operation on the command line (dia -e tree.shape -t shape tree.dia) leads to the same error message although it doesn't die but it stays blocked indefinitely (i.e. it never exits).