Assembly changes from run to run

MBG bioconda 1.0.16

Hi,

I am testing MBG on an organellar genome and noticed the results can change if you run the program multiple times. I couldn't find a seed parameter in the options to make the assembly reproducible. Any tips?
Below is an example of two consecutive runs of MBG on the same input with identical parameters and the results differ in length by 4 bp.

(mbg) [guibo205@rackham2 mbg]$ MBG -i mapped_reads.fasta -o asm.gfa -k 2501 -w 2470 -a 10 -u 50 -t 8
MBG bioconda 1.0.16
Parameters: k=2501,w=2470,a=10,u=50,t=8,r=0,R=0,hpcvariantcov=0,errormasking=hpc,endkmers=no,blunt=no,keepgaps=no,guesswork=no,copycountfilter=no,onlylocal=no,filterwithinunitig=yes,cleaning=yes,cache=no
Collecting selected k-mers
Reading sequences from mapped_reads.fasta
5852 total selected k-mers in reads
1583 distinct selected k-mers in reads
Unitigifying
Filtering by unitig coverage
19 distinct selected k-mers in unitigs after filtering
Getting read paths
Reading sequences from mapped_reads.fasta
Building unitig sequences
Reading sequences from mapped_reads.fasta
Writing graph to asm.gfa
selecting k-mers and building graph topology took 0,617 s
unitigifying took 0,0 s
filtering unitigs took 0,0 s
getting read paths took 0,704 s
building unitig sequences took 0,809 s
forcing edge consistency took 0,0 s
writing the graph and calculating stats took 0,2 s
nodes: 1
edges: 1
assembly size 34948 bp, N50 34948
approximate number of k-mers ~ 32447

(mbg) [guibo205@rackham2 mbg]$ MBG -i mapped_reads.fasta -o asm2.gfa -k 2501 -w 2470 -a 10 -u 50 -t 8
MBG bioconda 1.0.16
Parameters: k=2501,w=2470,a=10,u=50,t=8,r=0,R=0,hpcvariantcov=0,errormasking=hpc,endkmers=no,blunt=no,keepgaps=no,guesswork=no,copycountfilter=no,onlylocal=no,filterwithinunitig=yes,cleaning=yes,cache=no
Collecting selected k-mers
Reading sequences from mapped_reads.fasta
5852 total selected k-mers in reads
1583 distinct selected k-mers in reads
Unitigifying
Filtering by unitig coverage
19 distinct selected k-mers in unitigs after filtering
Getting read paths
Reading sequences from mapped_reads.fasta
Building unitig sequences
Reading sequences from mapped_reads.fasta
Writing graph to asm2.gfa
selecting k-mers and building graph topology took 0,620 s
unitigifying took 0,0 s
filtering unitigs took 0,0 s
getting read paths took 0,699 s
building unitig sequences took 0,731 s
forcing edge consistency took 0,0 s
writing the graph and calculating stats took 0,2 s
nodes: 1
edges: 1
assembly size 34944 bp, N50 34944
approximate number of k-mers ~ 32443

maickrau / MBG

Assembly changes from run to run #26