not sure, maybe I missed something,
but for me here no issue, it works with old z-index value (tried in Chrome and Firefox in j3.4.4):

also I see that #status bar has z-index: 1030 https://github.com/joomla/joomla-cms/blob/staging/administrator/templates/isis/css/template.css#L3339

UPD
I just tested on j 3.4.3 and there I got the described issue,
but seems it already fixed in 3.4.4 , in some way,
someone else can confirm?

ok, yes, it seems fixed:
in j3.4.3 #status has z-index: 1050;
in j3.4.4 #status has z-index: 1030;

This is not the z-index I get for the status bar. in edit module
It is z-index 1050 here:

My test is on 3.4.4 dev

Looks like the test has to be done on a multilang site.
inside the div status, we do have a div multiLangModal with class modal
That class contains z-index 1050
The code is there because the multilangstatus module is displayed

Therefore my PR solves the issue here and has no bad effect in monolanguage

hm, very strange, maybe I realy something missed
but you seen? https://github.com/joomla/joomla-cms/blob/staging/administrator/templates/isis/css/template.css#L3339 it is 1030

ok, I understand

One more tester!

I can reproduce the issue when enable module "Language status",
seems, this module add:

.navbar-fixed-bottom {
    z-index: 1050;
}

maybe we can just remove it there?

that does not looks very usefull https://github.com/joomla/joomla-cms/blob/staging/administrator/modules/mod_multilangstatus/tmpl/default.php#L15

it was introduced in #4575 ... @dgt41 can you check is it still need there?

We need to keep the z-index 1050 in div modal as it is a bootstrap css
https://github.com/joomla/joomla-cms/blob/staging/media/jui/css/bootstrap.css#L6138-L6159

BTW, I took off the line here: https://github.com/joomla/joomla-cms/blob/staging/administrator/modules/mod_multilangstatus/tmpl/default.php#L15 and it does not work:

as the issue remains, It is easier imho to just increase the z-index as proposed in this PR.

ok, I just thought we can make "all in one place", for avoid confusing in future

Current patch still good, anyway

My mistake... changed code on another test site.

The issue is different if we take off that line in the multilangstatus module: it displays the modal all greyed

Works ok here

@Fedik the problem was that multilingual status modules is by default assigned to the bottom bar and the z-index made it unusable since the modal will remained hidden…. I didn’t realize at that time that this will backfire for chosen lists

@infograf768 @Fedik shall we move multilane status from the bottom bar to cpanel? Will solve some inconsistencies, that still exist (e.g. reducing the browser width makes the modal go away)

@dgt41 for me it is fine where it is now

Moving the multilanguagestatus module to CPanel was considered and rejected when we implemented this feature as ot may be needed at any time when working on multilang (setting languagefilter plugin, setting switcher module(s), setting content languages, setting Home menu items).

2 good tests: Please RTC for 3.4.4

@infograf768 ahh ok, I didn’t know that

RTC

Thank you, @infograf768!