Failed to restore MBox from Google Takeout > Invalid label name - invalidArgument

[gomski-didit]

gyb --version
Got Your Back 1.95
git.io/gyb
Jay Lee - jay0lee@gmail.com
Python 3.13.7 64-bit final
google-api-client 2.181.0
macOS-15.7.1-arm64-arm-64bit-Mach-O arm64
Path: /Users/xxx/bin/gyb
ConfigPath: /Users/xxx/bin/gyb
OpenSSL 3.5.2 5 Aug 2025

command used:
gyb --email xxx@xxx --action restore-mbox --local-folder ./Gmail --service-account --extra-reserved-labels muted --debug > label-failure-output.txt

debug output:
connect: (oauth2.googleapis.com, 443)
send: b'POST /token HTTP/1.1\r\nHost: oauth2.googleapis.com\r\nContent-Length: 842\r\ncontent-type: application/x-www-form-urlencoded\r\nx-goog-api-client: gl-python/3.13.7 auth/2.40.3 auth-request-type/at cred-type/sa\r\nuser-agent: Got Your Back 1.95 | git.io/gyb | Jay Lee - jay0lee@gmail.com | Python 3.13.7 64-bit final | google-api-client 2.181.0 | macOS-15.7.1-arm64-arm-64bit-Mach-O arm64\r\naccept-encoding: gzip, deflate\r\n\r\n'
send: b'assertion=xx&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Ajwt-bearer'
reply: 'HTTP/1.1 200 OK\r\n'
header: Date: Tue, 28 Oct 2025 11:33:01 GMT
header: Pragma: no-cache
header: Expires: Mon, 01 Jan 1990 00:00:00 GMT
header: Cache-Control: no-cache, no-store, max-age=0, must-revalidate
header: Content-Type: application/json; charset=utf-8
header: Vary: Origin
header: Vary: X-Origin
header: Vary: Referer
header: Content-Encoding: gzip
header: Server: scaffolding on HTTPServer2
header: X-XSS-Protection: 0
header: X-Frame-Options: SAMEORIGIN
header: X-Content-Type-Options: nosniff
header: Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
header: Transfer-Encoding: chunked
connect: (oauth2.googleapis.com, 443)
send: b'POST /token HTTP/1.1\r\nHost: oauth2.googleapis.com\r\nContent-Length: 842\r\ncontent-type: application/x-www-form-urlencoded\r\nx-goog-api-client: gl-python/3.13.7 auth/2.40.3 auth-request-type/at cred-type/sa\r\nuser-agent: Got Your Back 1.95 | git.io/gyb | Jay Lee - jay0lee@gmail.com | Python 3.13.7 64-bit final | google-api-client 2.181.0 | macOS-15.7.1-arm64-arm-64bit-Mach-O arm64\r\naccept-encoding: gzip, deflate\r\n\r\n'
send: b'assertion=xxx&grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Ajwt-bearer'
reply: 'HTTP/1.1 200 OK\r\n'
header: Date: Tue, 28 Oct 2025 11:33:02 GMT
header: Pragma: no-cache
header: Cache-Control: no-cache, no-store, max-age=0, must-revalidate
header: Expires: Mon, 01 Jan 1990 00:00:00 GMT
header: Content-Type: application/json; charset=utf-8
header: Vary: Origin
header: Vary: X-Origin
header: Vary: Referer
header: Content-Encoding: gzip
header: Server: scaffolding on HTTPServer2
header: X-XSS-Protection: 0
header: X-Frame-Options: SAMEORIGIN
header: X-Content-Type-Options: nosniff
header: Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
header: Transfer-Encoding: chunked
connect: (gmail.googleapis.com, 443)
send: b'GET /$discovery/rest?version=v1 HTTP/1.1\r\nHost: gmail.googleapis.com\r\ncontent-length: 0\r\nuser-agent: Python-httplib2/0.30.0 (gzip)\r\naccept-encoding: gzip, deflate\r\n\r\n'
reply: 'HTTP/1.1 200 OK\r\n'
header: content-type: application/json; charset=UTF-8
header: vary: Origin
header: vary: X-Origin
header: vary: Referer
header: content-encoding: gzip
header: date: Tue, 28 Oct 2025 11:33:02 GMT
header: server: ESF
header: x-xss-protection: 0
header: x-frame-options: SAMEORIGIN
header: x-content-type-options: nosniff
header: Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
header: Transfer-Encoding: chunked

Using backup folder ./Gmail

Restoring from 2.68gb file ./Gmail/Alle E-Mails einschließlich Spam-Nachrichten und E.mbox...
send: b'GET /gmail/v1/users/me/labels?fields=labels%28name%2Cid%2Ctype%29&prettyPrint=true&alt=json HTTP/1.1\r\nHost: gmail.googleapis.com\r\naccept: application/json\r\naccept-encoding: gzip, deflate\r\nuser-agent: Got Your Back 1.95 | git.io/gyb | Jay Lee - jay0lee@gmail.com | Python 3.13.7 64-bit final | google-api-client 2.181.0 | macOS-15.7.1-arm64-arm-64bit-Mach-O arm64 (gzip)\r\nx-goog-api-client: gdcl/2.181.0 gl-python/3.13.7 cred-type/sa\r\ncontent-length: 0\r\nauthorization: Bearer xxx7\r\nx-allowed-locations: 0x0\r\n\r\n'
reply: 'HTTP/1.1 200 OK\r\n'
header: content-type: application/json; charset=UTF-8
header: vary: Origin
header: vary: X-Origin
header: vary: Referer
header: content-encoding: gzip
header: date: Tue, 28 Oct 2025 11:33:02 GMT
header: server: ESF
header: x-xss-protection: 0
header: x-frame-options: SAMEORIGIN
header: x-content-type-options: nosniff
header: Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
header: Transfer-Encoding: chunked

Creating label Archiviert
send: b'POST /gmail/v1/users/me/labels?fields=id&prettyPrint=true&alt=json HTTP/1.1\r\nHost: gmail.googleapis.com\r\naccept: application/json\r\naccept-encoding: gzip, deflate\r\nuser-agent: Got Your Back 1.95 | git.io/gyb | Jay Lee - jay0lee@gmail.com | Python 3.13.7 64-bit final | google-api-client 2.181.0 | macOS-15.7.1-arm64-arm-64bit-Mach-O arm64 (gzip)\r\nx-goog-api-client: gdcl/2.181.0 gl-python/3.13.7 cred-type/sa\r\ncontent-type: application/json\r\ncontent-length: 91\r\nauthorization: Bearer xx\r\nx-allowed-locations: 0x0\r\n\r\n'
send: b'{"labelListVisibility": "labelShow", "messageListVisibility": "show", "name": "Archiviert"}'
reply: 'HTTP/1.1 400 Bad Request\r\n'
header: vary: Origin
header: vary: X-Origin
header: vary: Referer
header: content-type: application/json; charset=UTF-8
header: content-encoding: gzip
header: date: Tue, 28 Oct 2025 11:33:02 GMT
header: server: ESF
header: x-xss-protection: 0
header: x-frame-options: SAMEORIGIN
header: x-content-type-options: nosniff
header: Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
header: Transfer-Encoding: chunked