Editing fails in web editor after update

[ndescr]

This is on a fresh install after my main site suffered the same error after trying to run a check for updates yesterday, which at first seemed successful.

When either pressing

"save" when editing a page

or

when checking for updates

I get this error: "Login failed. The email or password is incorrect."

After that it appears that I am still logged in and can access the "Admin" menu , but any interaction with the contents of the "Admin" menu gives me the same "Login failed" error. I can also still open editor on any page, but attempt to save gives same error.

Otherwise the site functions normally.

Here is relevant data.

Yellow-website.log:

2026-01-18 12:49:12 info Install Datenstrom Yellow 0.9, PHP 8.0.30, LiteSpeed x.x.x, Linux
2026-01-18 12:49:12 info Install extension 'Update 0.9.8'
2026-01-18 12:49:12 info Install extension 'Core 0.9.17'
2026-01-18 12:49:12 info Install extension 'Edit 0.9.12'
2026-01-18 12:49:12 info Install extension 'Generate 0.9.7'
2026-01-18 12:49:12 info Install extension 'Image 0.9.3'
2026-01-18 12:49:12 info Install extension 'Markdown 0.9.5'
2026-01-18 12:49:12 info Install extension 'Serve 0.9.1'
2026-01-18 12:49:12 info Install extension 'Stockholm 0.9.5'
2026-01-18 12:49:12 info Install extension 'English 0.9.5'
2026-01-18 12:49:12 info Install extension 'German 0.9.5'
2026-01-18 12:49:12 info Install extension 'Swedish 0.9.5'
2026-01-18 12:49:24 info Install extension 'Blog 0.9.4'
2026-01-18 12:49:24 info Add user 'Admin'

CoreDebugMode returns this:

YellowSystem::load Layout:default
YellowSystem::load Theme:stockholm
YellowSystem::load Parser:markdown
YellowSystem::load Status:public
YellowSystem::load CoreServerUrl:auto
YellowSystem::load CoreTimezone:Europe/Copenhagen
YellowSystem::load CoreContentExtension:.md
YellowSystem::load CoreContentDefaultFile:page.md
YellowSystem::load CoreContentErrorFile:page-error-(.).md
YellowSystem::load CoreLanguageFile:yellow-language.ini
YellowSystem::load CoreUserFile:yellow-user.ini
YellowSystem::load CoreWebsiteFile:yellow-website.log
YellowSystem::load CoreAssetLocation:/assets/
YellowSystem::load CoreMediaLocation:/media/
YellowSystem::load CoreDownloadLocation:/media/downloads/
YellowSystem::load CoreImageLocation:/media/images/
YellowSystem::load CoreThumbnailLocation:/media/thumbnails/
YellowSystem::load CoreMultiLanguageMode:0
YellowSystem::load CoreDebugMode:3
YellowSystem::load UpdateCurrentRelease:0.9
YellowSystem::load UpdateAvailableUrl:auto
YellowSystem::load UpdateAvailableFile:update-available.ini
YellowSystem::load UpdateInstalledFile:update-installed.ini
YellowSystem::load UpdateExtensionFile:extension.ini
YellowSystem::load UpdateEventPending:none
YellowSystem::load UpdateEventDaily:1768777242
YellowSystem::load UpdateTrashTimeout:7776660
YellowSystem::load BlogStartLocation:auto
YellowSystem::load BlogNewLocation:@title
YellowSystem::load BlogFilePrefix:1
YellowSystem::load BlogShortcutEntries:0
YellowSystem::load BlogPaginationLimit:5
YellowSystem::load EditSiteEmail:noreply
YellowSystem::load EditLocation:/edit/
YellowSystem::load EditUploadNewLocation:/media/@group/@filename
YellowSystem::load EditUploadExtensions:.gif, .jpeg, .jpg, .mp3, .mp4, .ogg, .pdf, .png, .svg, .zip
YellowSystem::load EditKeyboardShortcuts:ctrl+b bold, ctrl+i italic, ctrl+k strikethrough, ctrl+e code, ctrl+s save, ctrl+alt+p preview
YellowSystem::load EditToolbarButtons:auto
YellowSystem::load EditEndOfLine:auto
YellowSystem::load EditNewFile:page-new-(.).md
YellowSystem::load EditUserPasswordMinLength:8
YellowSystem::load EditUserHashAlgorithm:bcrypt
YellowSystem::load EditUserHashCost:10
YellowSystem::load EditUserAccess:create, edit, delete, restore, upload
YellowSystem::load EditUserHome:/
YellowSystem::load EditLoginRestriction:0
YellowSystem::load EditLoginSessionTimeout:2592000
YellowSystem::load EditBruteForceProtection:25
YellowSystem::load GenerateStaticUrl:auto
YellowSystem::load GenerateStaticDirectory:public/
YellowSystem::load GenerateStaticDefaultFile:index.html
YellowSystem::load GenerateStaticErrorFile:404.html
YellowSystem::load ImageUploadWidthMax:1280
YellowSystem::load ImageUploadHeightMax:1280
YellowSystem::load ImageUploadJpegQuality:80
YellowSystem::load ImageThumbnailJpegQuality:80
YellowSystem::load ImageJpegExtension:auto
YellowExtension::load file:system/workers/blog.php
YellowExtension::load file:system/workers/core.php
YellowExtension::load file:system/workers/edit.php
YellowExtension::load file:system/workers/english.php
YellowExtension::load file:system/workers/generate.php
YellowExtension::load file:system/workers/german.php
YellowExtension::load file:system/workers/image.php
YellowExtension::load file:system/workers/markdown.php
YellowExtension::load file:system/workers/serve.php
YellowExtension::load file:system/workers/stockholm.php
YellowExtension::load file:system/workers/swedish.php
YellowExtension::load file:system/workers/update.php
YellowLanguage::load file:system/extensions/yellow-language.ini
YellowUser::load file:system/extensions/yellow-user.ini
YellowPage::parseContent location:/
YellowPage::includeLayout file:system/layouts/error.html
YellowPage::includeLayout file:system/layouts/header.html
YellowPage::includeLayout file:system/layouts/navigation.html

Login failed

The email or password is incorrect. Please try again.

YellowPage::includeLayout file:system/layouts/footer.html
YellowCore::sendPage Cache-Control: no-cache, no-store
YellowCore::sendPage Content-Type: text/html; charset=utf-8
YellowCore::sendPage Content-Modified: Sun, 18 Jan 2026 12:48:57 GMT
YellowCore::sendPage Last-Modified: Sun, 18 Jan 2026 12:53:10 GMT
YellowCore::sendPage language:en layout:error theme:stockholm parser:markdown
YellowCore::processRequestError file:content/1-home/page.md
YellowCore::request status:430 time:4 ms

[markseuffert]

Hello and thank you for the detailed information. I am not able to reproduce the problem in a brand new installation.

Can you 1) try with a different web browser and 2) clean the browser cache/cookies in your current web browser?

[ndescr]

Tried several browsers already.
Wiped the install directory, re-installed from a fresh download and problem appear to be solved.

[markseuffert]

I reopened and marked your bug report as answered, hope this is okay with you.

We had one person before you who reported something similar in #1043. Not sure what causes it. Last year I had to change cookie names, because a web hosting company started blocking cookies with exactly the name we used in our software. Multiple people hosted their website there and I decided to change cookie names in the web editor in August 2025. The first editing problem was reported one month after that. Out of curiosity, which web hosting do you use?

If someone find out what causes this problem.... let us know.