[support] Menus beak when editing view

[steeph]

Hi! I have a problem with a D6 site and Views 3.

When saving any view (visiting the edit page and pressing Save or 
crating a new one is enough) two menus on the site disappear. But they 
only disappear on the front page. The front page is using a custom 
tpl.php file with additional regions. But the menues that disappear are 
only in the header and footer region wich are the same as on every other 
page. I haven't found anything to bring the menus back, except for 
replacing the menu database tables with those from a backup. So there 
must be something changed in the menues tables when saving a view (other 
blocks in these regions still work).

This is happening since I changed the menu entry of a view that was the 
sites front page a while back. It was replaced with the new front page, 
now they decided that the old front page should be accessible through a 
menu item in an other menu. Since I updated the menu entry of this view, 
the view's page isn't accessible anyore (Page not found) and the menus 
on the new front page disappear. Unfortunately there were other things 
changed at the same time so that we don't want to restore a complete 
backup (which still wouldn't let do what we want to do, making the old 
front page's view accessible again).

I hope I could explain the problem understandable. Does anyone have an 
idea what could have caused this and how to fix it? I'd appreciate any hint.