Ristretto in Xubuntu 20.04 crashes when I try to look at images on a different machine, but works in Xubuntu 18.04.

I have Xubuntu 20.04 installed on two machines. I use Gigolo to connect to the other machine. I navigate to a directory of images and click on one. Ristretto opens and immediately closes. If I start Ristretto from the command line it opens. I use its navigation tool to connect to a directory on the other machine. When I double click on an image, Ristretto immediately closes. On the command line is the line: Segmentation fault (core dumped)

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu

rsteff@ENU-1:~$ lsb_release -rd
Description: Ubuntu 20.04.2 LTS
Release: 20.04

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center

rsteff@ENU-1:~$ apt-cache policy ristretto
ristretto:
  Installed: 0.10.0-1
  Candidate: 0.10.0-1
  Version table:
 *** 0.10.0-1 500
        500 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status

3) What you expected to happen

I expected to display the image I clicked on to be displayed.

4) What happened instead

Ristretto crashed.

Ristretto works fine locally. It's only when I try to look at images on a separate machine. Ristretto on Xubuntu 18.04 works fine across the network.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ristretto 0.10.0-1
ProcVersionSignature: Ubuntu 5.4.0-77.86-generic 5.4.119
Uname: Linux 5.4.0-77-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Tue Jul 6 10:54:00 2021
InstallationDate: Installed on 2020-12-22 (196 days ago)
InstallationMedia: Xubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
SourcePackage: ristretto
UpgradeStatus: No upgrade log present (probably fresh install)