md5checksum shows example dataset analysis fails

Hi, I've been trying to use dentist on the provided example dataset but a number of the md5 check sums after it finishes running are failing with no other errors that I can find.

I installed snakemake v6.0.0 and singularity v3.6.3 through conda and ran through the example dataset as follows:

```
wget https://bds.mpi-cbg.de/hillerlab/DENTIST/dentist-example.v1.0.1.tar.gz
tar -xzf ./dentist-example.v1.0.1.tar.gz
cd dentist-example

# run the workflow
SKIP_LACHECK=1 snakemake --configfile=snakemake.yaml --use-singularity --cores=4

# validate the files
md5sum -c checksum.md5
```

but the checksum output was as follows:

```
gap-closed.fasta: FAILED
workdir/.assembly-test.bps: OK
workdir/.assembly-test.dentist-reads.anno: OK
workdir/.assembly-test.dentist-reads.data: OK
workdir/.assembly-test.dentist-self.anno: OK
workdir/.assembly-test.dentist-self.data: OK
workdir/.assembly-test.dust.anno: OK
workdir/.assembly-test.dust.data: OK
workdir/.assembly-test.hdr: OK
workdir/.assembly-test.idx: OK
workdir/.assembly-test.tan.anno: OK
workdir/.assembly-test.tan.data: OK
workdir/.gap-closed-preliminary.bps: FAILED
workdir/.gap-closed-preliminary.dentist-self.anno: FAILED
workdir/.gap-closed-preliminary.dentist-self.data: FAILED
workdir/.gap-closed-preliminary.dentist-weak-coverage.anno: FAILED
workdir/.gap-closed-preliminary.dentist-weak-coverage.data: FAILED
workdir/.gap-closed-preliminary.dust.anno: FAILED
workdir/.gap-closed-preliminary.dust.data: FAILED
workdir/.gap-closed-preliminary.hdr: OK
workdir/.gap-closed-preliminary.idx: FAILED
workdir/.gap-closed-preliminary.tan.anno: FAILED
workdir/.gap-closed-preliminary.tan.data: FAILED
workdir/.reads.bps: OK
workdir/.reads.idx: OK
workdir/assembly-test.assembly-test.las: OK
workdir/assembly-test.dam: OK
workdir/assembly-test.reads.las: OK
workdir/gap-closed-preliminary.dam: FAILED
workdir/gap-closed-preliminary.fasta: FAILED
workdir/gap-closed-preliminary.gap-closed-preliminary.las: FAILED
workdir/gap-closed-preliminary.reads.las: FAILED
workdir/reads.db: OK
md5sum: WARNING: 15 computed checksums did NOT match
```
any advice on how to get the example dataset running would be greatly appreciated,
Thanks,
Rishi

The issue is about md5 checksum mismatches when running the example dataset with snakemake and singularity. Start by examining the snakemake.yaml configuration and the workflow steps in the Snakefile. Run the example dataset locally to reproduce the checksum failures, then check the output files and logs for any discrepancies. Look at the DENTIST documentation for known issues with specific versions of snakemake or singularity.

Written by the indexing model from the issue text.