In the last few versions picard fails to start, it hangs a long time then dies.  If I remove my users .ICEauthority file it still has the 5 minute start delay but will then open correctly.

picard -d
QApplication: invalid style override passed, ignoring it.
Available styles: Windows, Fusion
D: 13:04:49,270 /usr/lib/picard/picard/tagger._init_:206: Starting Picard from '/usr/lib/picard/picard/tagger.py'
D: 13:04:49,271 /usr/lib/picard/picard/tagger._init_:208: Platform: Linux-5.0.0-20-lowlatency-x86_64-with-Ubuntu-19.04-disco CPython 3.7.3
D: 13:04:49,271 /usr/lib/picard/picard/tagger._init_:209: Versions: Picard 2.2.0.dev3, Python 3.7.3, PyQt 5.12.1, Qt 5.12.2, Mutagen 1.40.0, Discid discid 1.1.0 (compat layer from python-libdiscid 0.4.1), libdiscid 0.6.2, astrcmp C, SSL OpenSSL 1.1.1b 26 Feb 2019
D: 13:04:49,271 /usr/lib/picard/picard/tagger._init_:210: Configuration file path: '/home/bedlore/.config/MusicBrainz/Picard.ini'
D: 13:04:49,271 /usr/lib/picard/picard/tagger._init_:212: User directory: '/home/bedlore/.config/MusicBrainz/Picard'
D: 13:04:49,272 /usr/lib/picard/picard/i18n.setup_gettext:76: Using locale 'en_AU.UTF-8'
D: 13:04:49,272 /usr/lib/picard/picard/i18n.setup_gettext:78: Loading gettext translation, localedir='/usr/share/locale'
D: 13:04:49,273 /usr/lib/picard/picard/i18n.setup_gettext:82: Loading gettext translation (picard-countries), localedir='/usr/share/locale'
D: 13:04:49,273 /usr/lib/picard/picard/i18n.setup_gettext:89: [Errno 2] No translation file found for domain: 'picard-countries'
D: 13:04:49,273 /usr/lib/picard/picard/i18n.setup_gettext:108: _ = <function setup_gettext.<locals>.<lambda> at 0x7f499fc5e2f0>
D: 13:04:49,273 /usr/lib/picard/picard/i18n.setup_gettext:109: N_ = <function <lambda> at 0x7f499a09e510>
D: 13:04:49,273 /usr/lib/picard/picard/i18n.setup_gettext:110: ngettext = <function setup_gettext.<locals>._ngettext at 0x7f4994b7c488>
D: 13:04:49,273 /usr/lib/picard/picard/i18n.setup_gettext:111: gettext_countries = <function setup_gettext.<locals>._gettext_countries at 0x7f4994b7c510>
D: 13:04:49,273 /usr/lib/picard/picard/i18n.setup_gettext:112: gettext_attributes = <function setup_gettext.<locals>._gettext_attributes at 0x7f4994b7c598>
D: 13:04:49,292 /usr/lib/picard/picard/webservice/_init_.set_cache:297: NetworkDiskCache dir: '/home/bedlore/.cache/MusicBrainz/Picard/picard/' size: 5553120 / 104857600
D: 13:04:49,294 /usr/lib/picard/picard/pluginmanager.load_plugins_from_directory:211: Looking for plugins in directory '/usr/lib/picard/picard/plugins', 0 names found
D: 13:04:49,295 /usr/lib/picard/picard/pluginmanager.load_plugins_from_directory:211: Looking for plugins in directory '/home/bedlore/.config/MusicBrainz/Picard/plugins', 0 names found
D: 13:09:37,992 /usr/lib/picard/picard/tagger.main:908: Looking for Qt locale en_AU in /usr/share/qt5/translations
D: 13:09:37,992 /usr/lib/picard/picard/browser/browser.start:69: Starting the browser integration (127.0.0.1:8000)
ICE default IO error handler doing an exit(), pid = 7835, errno = 32

• And here is the same with .ICEauthority removed

$ picard -d
Qt: Session management error: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
QApplication: invalid style override passed, ignoring it.
Available styles: Windows, Fusion
D: 13:16:22,170 /usr/lib/picard/picard/tagger._init_:206: Starting Picard from '/usr/lib/picard/picard/tagger.py'
D: 13:16:22,171 /usr/lib/picard/picard/tagger._init_:208: Platform: Linux-5.0.0-20-lowlatency-x86_64-with-Ubuntu-19.04-disco CPython 3.7.3
D: 13:16:22,171 /usr/lib/picard/picard/tagger._init_:209: Versions: Picard 2.2.0.dev3, Python 3.7.3, PyQt 5.12.1, Qt 5.12.2, Mutagen 1.40.0, Discid discid 1.1.0 (compat layer from python-libdiscid 0.4.1), libdiscid 0.6.2, astrcmp C, SSL OpenSSL 1.1.1b 26 Feb 2019
D: 13:16:22,171 /usr/lib/picard/picard/tagger._init_:210: Configuration file path: '/home/bedlore/.config/MusicBrainz/Picard.ini'
D: 13:16:22,171 /usr/lib/picard/picard/tagger._init_:212: User directory: '/home/bedlore/.config/MusicBrainz/Picard'
D: 13:16:22,172 /usr/lib/picard/picard/i18n.setup_gettext:76: Using locale 'en_AU.UTF-8'
D: 13:16:22,172 /usr/lib/picard/picard/i18n.setup_gettext:78: Loading gettext translation, localedir='/usr/share/locale'
D: 13:16:22,173 /usr/lib/picard/picard/i18n.setup_gettext:82: Loading gettext translation (picard-countries), localedir='/usr/share/locale'
D: 13:16:22,173 /usr/lib/picard/picard/i18n.setup_gettext:89: [Errno 2] No translation file found for domain: 'picard-countries'
D: 13:16:22,173 /usr/lib/picard/picard/i18n.setup_gettext:108: _ = <function setup_gettext.<locals>.<lambda> at 0x7f0b573a82f0>
D: 13:16:22,173 /usr/lib/picard/picard/i18n.setup_gettext:109: N_ = <function <lambda> at 0x7f0b517e8510>
D: 13:16:22,173 /usr/lib/picard/picard/i18n.setup_gettext:110: ngettext = <function setup_gettext.<locals>._ngettext at 0x7f0b4c2c6488>
D: 13:16:22,173 /usr/lib/picard/picard/i18n.setup_gettext:111: gettext_countries = <function setup_gettext.<locals>._gettext_countries at 0x7f0b4c2c6510>
D: 13:16:22,173 /usr/lib/picard/picard/i18n.setup_gettext:112: gettext_attributes = <function setup_gettext.<locals>._gettext_attributes at 0x7f0b4c2c6598>
D: 13:16:22,192 /usr/lib/picard/picard/webservice/_init_.set_cache:297: NetworkDiskCache dir: '/home/bedlore/.cache/MusicBrainz/Picard/picard/' size: 5553120 / 104857600
D: 13:16:22,194 /usr/lib/picard/picard/pluginmanager.load_plugins_from_directory:211: Looking for plugins in directory '/usr/lib/picard/picard/plugins', 0 names found
D: 13:16:22,194 /usr/lib/picard/picard/pluginmanager.load_plugins_from_directory:211: Looking for plugins in directory '/home/bedlore/.config/MusicBrainz/Picard/plugins', 0 names found
D: 13:18:52,550 /usr/lib/picard/picard/tagger.main:908: Looking for Qt locale en_AU in /usr/share/qt5/translations
D: 13:18:52,551 /usr/lib/picard/picard/browser/browser.start:69: Starting the browser integration (127.0.0.1:8000)
D: 13:18:52,709 /usr/lib/picard/picard/webservice/ratecontrol.get_delay_to_next_request:110: ('musicbrainz.org', 443): First request
D: 13:18:52,710 /usr/lib/picard/picard/oauth.refresh_access_token:162: OAuth: refreshing access_token with a refresh_token 8x5uaV5UvCrkJA4-KEz1XQ
D: 13:18:52,711 /usr/lib/picard/picard/webservice/_init_.post:462: POST-DATA 'grant_type=refresh_token&refresh_token=removed&client_id=removed&client_secret=removed'
D: 13:18:53,662 /usr/lib/picard/picard/webservice/ratecontrol.get_delay_to_next_request:119: ('musicbrainz.org', 443): Last request was 952 ms ago, waiting 48 ms before starting another one
D: 13:18:53,721 /usr/lib/picard/picard/webservice/ratecontrol.get_delay_to_next_request:115: ('musicbrainz.org', 443): Last request was 1011 ms ago, starting another one
D: 13:18:53,721 /usr/lib/picard/picard/webservice/ratecontrol.increment_requests:135: ('musicbrainz.org', 443): Incrementing requests to: 1
D: 13:18:55,688 /usr/lib/picard/picard/webservice/ratecontrol.decrement_requests:143: ('musicbrainz.org', 443): Decrementing requests to: 0
D: 13:18:55,688 /usr/lib/picard/picard/webservice/_init_._handle_reply:415: Received reply for https://musicbrainz.org:443/oauth2/token: HTTP 200 (OK)
D: 13:18:55,689 /usr/lib/picard/picard/oauth.set_access_token:157: OAuth: got access_token 6y1UxjRLub_vcI8cdel4eQ that expires in 3600 seconds
D: 13:18:55,689 /usr/lib/picard/picard/webservice/ratecontrol.increment_requests:135: ('musicbrainz.org', 443): Incrementing requests to: 1
D: 13:18:55,689 /usr/lib/picard/picard/webservice/ratecontrol._out_of_backoff:226: ('musicbrainz.org', 443): oobackoff; delay: 1000ms -> 1000ms; slow start; window size 1.000 -> 2.000
D: 13:18:56,047 /usr/lib/picard/picard/webservice/ratecontrol.decrement_requests:143: ('musicbrainz.org', 443): Decrementing requests to: 0
D: 13:18:56,048 /usr/lib/picard/picard/webservice/_init_._handle_reply:415: Received reply for https://musicbrainz.org:443/ws/2/collection: HTTP 200 (OK)
D: 13:18:56,048 /usr/lib/picard/picard/collection.request_finished:137: User collections: []
D: 13:18:56,048 /usr/lib/picard/picard/webservice/ratecontrol._out_of_backoff:226: ('musicbrainz.org', 443): oobackoff; delay: 1000ms -> 1000ms; slow start; window size 2.000 -> 3.000