[SOLVED, due misclosed custom HTML] Backend editing TABs of item form are missing

Here is what i get:

Also this picture

Hello

- the HTML syntax is broken either misclosed quotes or miclosed tags

are there any quotes in article type name ? or in any of the other TAB titles
e.g. you made a language override of some of the string of the TAB titles ?

Hello

it can be an update field that is adding misclosed HTML tags
or maybe you added custom HTML via the field:
Tabs / Fieldsets / Custom HTML ?

if you have the above field then temporarily unpublish all field of the type

Prefix - Suffix - Separator in field "prawa00"
Every value prefix : <div>
when I clear this tabs display OK.

Hello

Every value prefix : <div>
when I clear this tabs display OK.

The above explains it, openning a <div> and then not closing it , is like a car with a wheel missing from one side, it will not function properly

- just remember to always close custom HTML tags that you open
e.g. in your case you need to also add </div> to the every value suffix, so that it gets closed

Thanks for feedback, it confirms that there is no bug

Regards

But the idea was mine so, that one field open second field is closing. Example <div> in field00 and </div> in field09.
I thank for the devoted time.

Hello

before another field is reached several other HTML tags are open and closed, if you do "view HTML source" you see this, so your idea is impossible

but you can do what you thought in much more powerful way:

1. create 2 new fields of type :
- Tabs / Fieldsets / Custom HTML
and assign them to the desired Item TYPE e.g. to type "Announcement"

2.
Name (=label) 1st field : customDIVopen
Name (=label) 1st field : customDIVclose

then in 1st of them set custom HTML "<div>"
and in 2nd of them set custom HTML "</div>"

2. In Fields manager filter by Item TYPE "Announcement"

3. Order the fields so that you have this order:
...
customDIVopen
myfield1
myfield2
customDIVclose
...

NOTE
- the field above besides custom HTML can also create TAB-sets and Field-sets
- you can use fieldgroup field to create multi-value group of fields