When I run apt update, aptstreamcli produces come GLib-CRITICAL errors. I can still use apt upgrade however.
# apt update Hit:1 https://repo.puri.sm/pureos green InRelease (appstreamcli:29242): GLib-CRITICAL **: 19:26:56.268: g_variant_builder_end: assertion '!GVSB(builder)->uniform_item_types || GVSB(builder)->prev_item_type != NULL || g_variant_type_is_definite (GVSB(builder)->type)' failed (appstreamcli:29242): GLib-CRITICAL **: 19:26:56.269: g_variant_new_variant: assertion 'value != NULL' failed (appstreamcli:29242): GLib-ERROR **: 19:26:56.269: g_variant_new_parsed: 11-13:invalid GVariant format string Trace/breakpoint trap Reading package lists... Done E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/cache/app-info -a -e /usr/bin/appstreamcli; then appstreamcli refresh-cache > /dev/null; fi' E: Sub-process returned an error code