The theme changes after submit or update

Hi,

Sometimes when I submit a form in an admin page, for exemple in content type manage display or save a view or a configuration, the admin content page is reloaded with the default theme and not the admin theme.

I use seven for the admin theme and sky is my default theme.
the module overlay is disabled,
and "Use the administration theme when editing or creating content" is checked .

an exemple :
if I go to http://localhost/admin/structure/types/manage/article/display
seven theme is loading
After submit the url is the same but now this is the sky theme that is loaded ??
If I submit again it keeps sky theme. If i reload, now it's the seven theme.

I don't understand what happens.

How can I track who call the theme and how drupal knows wich theme to call ?

Did you meet this bug, is this a misconfiguration or a confic module who can do that?

note: this happens also with bartik

Thanks

PS : my list's module

Administration menu 7.x-3.0-rc1
Advanced help 7.x-1.0
Author Pane 7.x-2.0-alpha1
Backup and Migrate 7.x-2.2
Bulk Export 7.x-1.0-rc1
Calendar 7.x-3.x-dev
Chain Menu Access API 7.x-1.0
Color 7.9
Comment 7.9
Contact Forms 7.x-1.2
Content Notifications 7.x-1.0-alpha1
Content type groups 7.x-1.1
Contextual links 7.9
Count Results 7.x-1.x-dev
Custom Breadcrumbs 7.x-1.0-alpha1
Custom content panes 7.x-1.0-rc1
Custom Search Blocks 7.x-1.9
Custom Search Taxonomy 7.x-1.9
Dashboard 7.9
Database logging 7.9
Date Popup 7.x-2.0-alpha5
Date Tools 7.x-2.0-alpha5
DB Maintenance 7.x-1.0-alpha1
Devel 7.x-1.2
DHTML Menu 7.x-1.0-beta1
DownloadFile 7.x-1.1
Editable Fields 7.x-1.0-alpha2
Embed Views Display 7.x-1.1
Entity Reference View Widget 7.x-1.x-dev
Entity translation 7.x-1.0-alpha1
External Links 7.x-1.12
Extras 7.x-1.4
Feature Quicktab et view 7.x-1.0-dev
Feeds Admin UI 7.x-2.0-alpha4
Feeds Import 7.x-2.0-alpha4
Feeds News 7.x-2.0-alpha4
Field collection 7.x-1.0-beta2
Field UI 7.9
Fieldgroup views 7.x-1.1
Forms 7.x-1.4
Frequently Asked Questions 7.x-1.0-rc1
FullCalendar 7.x-2.0-alpha7
Galleria 7.x-1.0-beta2
Geofield Map 7.x-1.0-beta2
Geolocation Google Maps 7.x-1.0-beta2
Gettext Import / Export API 7.x-1.0-alpha1
GMap CCK Field 7.x-1.x-dev
GMap Location 7.x-1.x-dev
GMap Marker List (ALPHA) 7.x-1.x-dev
GMap Taxonomy Markers 7.x-1.x-dev
Google Analytics 7.x-1.2
Help 7Hierarchical Select Flat List 7.x-3.0-alpha5
Hierarchical Select Small Hierarchy 7.x-3.0-alpha5
Hierarchical Select Taxonomy Views 7.x-3.0-alpha5
Image CAPTCHA 7.x-1.0-beta1
Image resize filter 7.x-1.13
Imagecache Autorotate 7.x-0.0
Imagecache Canvas Actions 7.x-0.0
Imagecache Color Actions 7.x-0.0
IMCE 7.x-1.5
Insert 7.x-1.1
Invite Statistics 7.x-2.1-beta1
jCarousel 7.x-2.6
jQuery plugins 7.x-1.0
Language Switcher 7.x-1.0-beta2
Language switcher dropdown 7.x-1.0
Lightbox2 7.x-1.0-beta1
Localization update 7.x-1.0-beta2
Mail System 7.x-2.30
Media Internet Sources 7.x-1.0-rc2
Menu breadcrumb 7.x-1.3
Menu translation 7.x-1.2
Menu Tree 7.x-1.0-beta1
Mini panels 7.x-3.0-alpha3
Module filter 7.x-1.6
Multilingual content 7.x-1.2
NAT 7.x-1.0-alpha4
Multilingual select 7.x-1.2
Nice Menus 7.x-2.0
Node Reference URL Widget 7.x-1.12
Notifications UI 7.x-1.0-alpha1
Number 7.9
OG create permissions 7.x-1.0
Organic groups access control 7.x-1.3
Organic groups context 7.x-1.3
Organic groups e-mail blast 7.x-1.0
Organic groups field access 7.x-1.3
Organic groups node link 7.x-1.0
Organic groups Views integration 7.x-1.0
Panels In-Place Editor 7.x-3.0-alpha3
Pathauto 7.x-1.0
Paypal Donation Page 7.x-1.2
Privatemsg Email Notification 7.x-1.2
Privatemsg filter 7.x-1.2
Privatemsg Limits 7.x-1.2
Privatemsg roles 7.x-1.2
Publish Content 7.x-1.0
Quicktabs Styles 7.x-3.2
RDF 7.9
Rules UI 7.x-2.0
ShareThis Block 7.x-2.2
Shortcut 7.9
Signup 7.x-1.x-dev
Statistics 7.9
Syslog 7.9
Tagadelic 7.x-1.x-dev
Taxonomy Manager 7.x-1.0-beta2
Taxonomy Menu 7.x-1.2
Terms of Use 7.x-1.1
Translation overview 7.x-2.0-beta1
Update manager 7.9
User account tabs 7.x-1.0-alpha1
User ReadOnly 7.x-1.3
User Reference 7.x-2.0-beta3
User registration notification 7.x-1.0-alpha2
Variable admin 7.x-1.1
Variable store 7.x-1.1
Video UI 7.x-2.4
View reference 7.x-3.1
Views Bulk Operations 7.x-3.0-beta3
Views content panes 7.x-1.0-rc1
Views Embed Form 7.x-1.3
Views PDF Display 7.x-1.0-rc1
Views Slideshow: Cycle 7.x-3.0
Views UI 7.x-3.0-rc3
Web messaging 7.x-1.0-alpha1