Pinta froze while "Open Image file" dialog box was displayed.

1) Ubuntu 19.10
2) 1.6-2
3) Open image file without Pinta freezing.
4) Pinta froze while the "Open Image file" dialog box was displayed.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: pinta 1.6-2
ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
Uname: Linux 5.3.0-23-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Dec 3 19:11:13 2019
ExecutablePath: /usr/lib/pinta/Pinta.exe
InstallationDate: Installed on 2019-10-28 (36 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
InterpreterPath: /usr/bin/mono-sgen
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pinta
UpgradeStatus: No upgrade log present (probably fresh install)