Ich hab das gleiche Problem seit dem Update auf 5.4.
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### wp-core ###
version: 5.4
site_language: de_DE
user_language: de_DE
timezone: Europe/Berlin
permalink: /%year%/%monthnum%/%day%/%postname%/
https_status: true
user_registration: 0
default_comment_status: open
multisite: false
user_count: 8
dotorg_communication: true
### wp-paths-sizes ###
wordpress_path: /XXXPATHXXX/webmontag-kiel.de
wordpress_size: 91,44 MB (95881338 bytes)
uploads_path: /XXXPATHXXX/webmontag-kiel.de/wp-content/uploads
uploads_size: 163,69 MB (171643217 bytes)
themes_path: /XXXPATHXXX/webmontag-kiel.de/wp-content/themes
themes_size: 4,00 MB (4197765 bytes)
plugins_path: /XXXPATHXXX/webmontag-kiel.de/wp-content/plugins
plugins_size: 62,88 MB (65934732 bytes)
database_size: 5,60 MB (5870900 bytes)
total_size: 327,61 MB (343527952 bytes)
### wp-dropins (3) ###
advanced-cache.php: true
db.php: true
object-cache.php: true
### wp-active-theme ###
name: Material Gaze (material-gaze)
version: 1.0.2
author: Marty Helmick
author_website: (undefined)
parent_theme: Stargazer (stargazer)
theme_features: theme-layouts, hybrid-core-template-hierarchy, get-the-image, breadcrumb-trail, cleaner-gallery, automatic-feed-links, customize-selective-refresh-widgets, whistles, post-formats, custom-logo, editor-color-palette, gutenberg, custom-background, custom-header, editor-style, title-tag, html5, post-thumbnails, widgets, menus
theme_path: /XXXPATHXXX/webmontag-kiel.de/wp-content/themes/material-gaze
### wp-parent-theme ###
name: Stargazer (stargazer)
version: 4.0.0
author: Justin Tadlock
author_website: https://themehybrid.com
theme_path: /XXXPATHXXX/webmontag-kiel.de/wp-content/themes/stargazer
### wp-themes-inactive (1) ###
Twenty Twenty: version: 1.2, author: WordPress-Team
### wp-plugins-active (21) ###
Antispam Bee: version: 2.9.1, author: pluginkollektiv
Autoptimize: version: 2.6.2, author: Frank Goossens (futtta)
Avatar: version: 0.1.4, author: wonderboymusic (after all of the BuddyPress contributors)
Compress JPEG & PNG images: version: 3.2.1, author: TinyPNG
Contact Form 7: version: 5.1.7, author: Takayuki Miyoshi
Event Posts: version: 0.1, author: Devin Price
FV Gravatar Cache: version: 0.4.5, author: Foliovision
Limit Login Attempts: version: 1.7.1, author: Johan Eenfeldt
Link Manager: version: 0.1-beta, author: WordPress
Newsletter: version: 6.5.8, author: Stefano Lissa & The Newsletter Team
Podlove Podcast Publisher: version: 2.9.10, author: Podlove
Podlove Subscribe Button: version: 1.3.7, author: Podlove
Regenerate Thumbnails: version: 3.1.3, author: Alex Mills (Viper007Bond)
Shariff Wrapper: version: 4.6.5, author: Jan-Peter Lambeck & 3UU
Stringintelligenz: version: 0.2.3, author: Caspar Hübinger
W3 Total Cache: version: 0.13.1, author: BoldGrid
WebP Express: version: 0.17.3, author: Bjørn Rosell
WordPress Importer: version: 0.7, author: wordpressdotorg
WP-Matomo: version: 1.0.22, author: André Bräkling
WP YouTube Lyte: version: 1.7.11, author: Frank Goossens (futtta)
Yoast SEO: version: 13.4.1, author: Team Yoast
### wp-media ###
image_editor: WP_Image_Editor_Imagick
imagick_module_version: 1673
imagemagick_version: ImageMagick 6.8.9-9 Q16 x86_64 2019-11-12 http://www.imagemagick.org
imagick_limits:
imagick::RESOURCETYPE_AREA: 31 GB
imagick::RESOURCETYPE_DISK: 1.84467440737E+19
imagick::RESOURCETYPE_FILE: 786432
imagick::RESOURCETYPE_MAP: 31 GB
imagick::RESOURCETYPE_MEMORY: 16 GB
imagick::RESOURCETYPE_THREAD: 8
gd_version: 2.1.1
ghostscript_version: 9.26
### wp-server ###
server_architecture: Linux 4.4.0-176-generic x86_64
httpd_software: Apache
php_version: 7.4.2 64bit
php_sapi: fpm-fcgi
max_input_variables: 3000
time_limit: 600
memory_limit: 512M
max_input_time: 60
upload_max_size: 200M
php_post_max_size: 200M
curl_version: 7.47.0 OpenSSL/1.0.2g
suhosin: false
imagick_availability: true
htaccess_extra_rules: true
### wp-database ###
extension: mysqli
server_version: 5.6.44-nmm1-log
client_version: mysqlnd 7.4.2
### wp-constants ###
WP_HOME: https://www.webmontag-kiel.de
WP_SITEURL: https://www.webmontag-kiel.de
WP_CONTENT_DIR: /XXXPATHXXX/webmontag-kiel.de/wp-content
WP_PLUGIN_DIR: /XXXPATHXXX/webmontag-kiel.de/wp-content/plugins
WP_MAX_MEMORY_LIMIT: 512M
WP_DEBUG: false
WP_DEBUG_DISPLAY: true
WP_DEBUG_LOG: false
SCRIPT_DEBUG: false
WP_CACHE: true
CONCATENATE_SCRIPTS: undefined
COMPRESS_SCRIPTS: undefined
COMPRESS_CSS: undefined
WP_LOCAL_DEV: undefined
DB_CHARSET: utf8mb4
DB_COLLATE: undefined
### wp-filesystem ###
wordpress: writable
wp-content: writable
uploads: writable
plugins: writable
themes: writable
