Thanks for the report. Are you sure this is caused by QM 3.9? Did you update any other plugins at the same time?
No, I haven’t updated any other plugins.
We apologize for any inconvenience, but please investigate.
I will describe my current environment.
WordPress：5.9.3 Japanese
PHP：7.4.25
Advanced Custom Fields 5.12.2
Advanced Custom Fields: Repeater Field 2.1.0
Advanced Editor Tools 5.6.0
Akismet Anti-Spam 4.2.3
All in One SEO 4.2.0
All-in-One WP Migration 7.58
Autoptimize 3.0.3
Category Order and Taxonomy Terms Order 1.6
Classic Editor 1.6.2
Contact Form 7 5.5.6
Contact Form DB 2.10.22
Custom Post Type Permalinks 3.4.5
Edit Author Slug 1.8.4
Flamingo 2.2.3
Google Analytics for WordPress by MonsterInsights 8.5.0
Heatmap UserHeat 1.1.6
Meta Slider 3.27.3
Query Monitor 3.9.0
Regenerate Thumbnails 3.1.5
Responsive Menu 4.1.10
Rewrite Rules Inspector 1.3.1
Save Editor Scroll Position 1.1
SiteGuard WP Plugin 1.6.1
Smush Pro 3.9.8
TinyMCE template 4.8.1
WP Multibyte Patch 2.9
WP phpMyAdmin 5.2.0.1
WP-DBManager 2.80.5
WPMU DEV Dashboard 4.11.12
XML Sitemaps 4.1.1
Xserver Migrator 1.6.1
Yoast Duplicate Post 4.4
Revision control 2.3.2
that’s all.
I downgraded the query monitor, but the admin bar remained off.
It seems that the setting to hide the admin bar has been written to the DB.
Really, really, I’m sorry. After publishing the environment, I disabled all the plugins and then enabled them one by one, but when I enabled Responsive Menu 4.1.10, the admin bar disappeared.
We deeply and deeply apologize to the author.
Thanks for letting me know!
Thank you, Your support.
now I close this thread by END.
