Admin theme is no longer used after cache is cleared

I absolutely cannot reproduce this. Please provide more info.

I also confirm that it is the presence of Backup Migrate (enabled) that makes this happen. I cannot for the life of me figure out why, though. Neither of them has anything to do with hook_theme_registry_alter or a similar suspect.

I created an issue #1379152: Breaks admin theme in the backup_migrate queue for this as well.

Re #4 -- FWIW, I am not using Term Fields on my particular site..

Possibily related issue: #1377542: Do not always use the admin theme.

Hi all, I am having a similar issue as some of the ones described here, however mine is just slightly different so I don't know if I should open a new issue or add on to this one. Here are my specific symptoms.

When I save the modules page or perhaps a display settings page for a content type, the admin theme goes away and changes to a front end theme. Sometimes, I have noticed that even the overlay gets hosed and admin pages revert not only to the front end theme but to one without an overlay.

I have narrowed down this behavior happening with only this module enabled in combination with Backup and Migrate. If I disable Backup and Migrate, then the behavior goes away and likewise if I diable Entity translation, the behavior of losing my admin theme goes away as well. However, it does not happen with just Backup and Migrate enabled without Entity translation enabled so Entity translation seems to be the catalyst to set this off? ** Note if I reload a page where the admin theme has gone away, it comes back after reload. It does not bother me as a site builder but for my editors, I know they will get confused by this.

I can confirm #8 symptoms. Having the same issue on two of my sites.
Also i couldn't override this misbehavior with hook_custom_theme().

I too have experienced this problem, but hadn't been able to figure out what was causing it. If someone comes up with a solution I'm happy to test.

The problem seems to be in call to menu_get_router() (function entity_translation_entity_info_alter).
Some contrib modules (in my case views) initialize the theme in an incorrect phase.
Possibily related issue: #1341314: Nested call of entity_get_info() due to menu_get_router() in entity_translation_entity_info_alter() .

I have been able to completely reproduce this issue on an entirely new site I am developing. The admin theme was fine with Backup and Migrate enabled. Once I added in Entity Translation into the mix, immediately my admin theme started reverting to the front end theme on node edit saves, module page saves, field saves etc...

Postponing this on #1341314: Nested call of entity_get_info() due to menu_get_router() in entity_translation_entity_info_alter() .

Please try the latest dev (a new snapshot will be out in 4 hours) and check whether the issue is now fixed.

Cleaning up the queue.
Reopen if needed.

@plach - do you know what caused and fixed this issue - I'm seeing it on a site without Entity Translation and so another module likely has the same bug. Thanks!

Updated steps to reproduce.

This tends to happen if you have admin theme selected under admin theme section, but this theme is not enabled and is under disabled section.

Please don't add more information to a closed ticket, open a new ticket if needed.
Thanks! :)

P.S.: Following the "Steps to reproduce" in the issue's description shows that the problem doesn't occur with the current versions of ET and B&M.