yes, i am also not able to edit portal blocks, its gives error 
__portalBlock not found after edit/save, can option is present to not 
edit portal block or adding new content in portal block ? Horde 
Version (3.3.9)

Thanks
Muzi

yes, i am also not able to edit portal blocks, its gives error 
__portalBlock not found after edit/save, can option is present to not 
edit portal block or adding new content in portal block ?

Thanks
Muzi

Maybe, its caused by this: 
http://www.htmlcodetutorial.com/forms/_INPUT_DISABLED.html?
Would it be better to change disabled to readonly?

We were noticing this issue, too. In earlier releases the 
summary-blocks of nag or kronolith worked fine, today we get an error 
in the portal-view for these blocks (Block "summary" der Anwendung "" 
nicht gefunden).
In PHP logs following error is registered, when try to save the new(or 
edited) block:
  PHP Warning:  Illegal offset type in 
/var/www/horde/lib/Horde/Block/Layout/Manager.php on line 273

This was actually another issue entirely, they weren't being removed 
from the $conf array when the configuration form was being saved, so 
they were still configured to be fixed.

Closing since OP stated the problem doesn't exist anymore.

Yes, the issue was somehow related to the fixed blocks. I was able to 
remove all blocks and now everything works fine.

Sorry, I wasn't clear. They *used* to be fixed blocks. They were 
removed from the fixed block configuration, but are still visible on 
the portal. There is no way to remove them.

With the latest update the issues changed for me. Editing/Saving is 
now possible, but the block is not displayed: Block "summary" of 
application "" not found. Horde_Block__summary not found. The app is 
missing

Um, that's the idea of fixed blocks.

I also see this issue. The key information here might be that the 
blocks that are affected, for me at least, were previously configured 
as fixed_blocks. All other blocks are acting normally.

Which post data? Block are edited through GET URLs.

In the post data of the form there's no parameter app, so the 
assignment to $newapp/$newtype fails.

I still don't see this. All remove icons are there and I can edit any 
block. In lack of any other ideas: is your first block a Horde block? 
I have an IMP block at the first position.

It seems only non-horde blocks have this issue. Also the remove icon 
for all non-horde portal blocks is gone. If you create a portal block 
new, editing is possible until you logout.

I don't see this.

It's not possible to edit an existing portal block:

Horde_Block__ not found.

1. Horde_Block_Layout_Manager->handle() 
/horde/horde/services/portal/edit.php:31
2. Horde_Block_Collection->getParams() 
/horde/framework/Block/lib/Horde/Block/Layout/Manager.php:275
3. Horde_Block_Collection->getBlock() 
/horde/framework/Block/lib/Horde/Block/Collection.php:409

Horde_Exception Object
(
     [_previous:private] =>
     [message:protected] => Horde_Block__ not found.
     [string:private] =>
     [code:protected] => 0
     [file:protected] => /horde/framework/Block/lib/Horde/Block/Collection.php
     [line:protected] => 142
     [trace:private] => Array
         (
             [0] => Array
                 (
                     [file] => 
/horde/framework/Block/lib/Horde/Block/Collection.php
                     [line] => 409
                     [function] => getBlock
                     [class] => Horde_Block_Collection
                     [type] => ->
                     [args] => Array
                         (
                             [0] =>
                             [1] =>
                         )

                 )

             [1] => Array
                 (
                     [file] => 
/horde/framework/Block/lib/Horde/Block/Layout/Manager.php
                     [line] => 275
                     [function] => getParams
                     [class] => Horde_Block_Collection
                     [type] => ->
                     [args] => Array
                         (
                             [0] =>
                             [1] =>
                         )

                 )

             [2] => Array
                 (
                     [file] => /horde/horde/services/portal/edit.php
                     [line] => 31
                     [function] => handle
                     [class] => Horde_Block_Layout_Manager
                     [type] => ->
                     [args] => Array
                         (
                             [0] => save
                             [1] => 0
                             [2] => 1
                             [3] =>
                         )
                 )
         )
)