Problems with FAQ destop mode and FAQ numbering lists

[thluethi]

Hello everybody

We are using OTRS since more than 10 years now and have done an upgrade on version 5.0.10 lately.
Now, there are some new problems with the desktop view in FAQ (5.0.5) in several browsers (for example Firefox and Chrome) and especially in the display of the desktop mode and the mobile mode.

In the FAQ Explorer (in both public.pl and customer.pl), if one is calling up FAQs for the first time in the browser, the mobile mode is displayed at opening of the page, instead of the desktop mode. So you see the blocks, which are displayed normally on the right hand side, at the top of the screen (have a look in the attachment FAQExplorerDisplay, in the black frame you see the correct display, in the big, red frame the wrong one).
After one does change to the desktop mode once, everything seems to be all right so far. Although the desktop mode should be displayed on the screen at the very first beginning as well. If one does never change to the desktop mode, the wrong display of the blocks on the top will reappear at every opening of another FAQ subcathegory or article.

Especially confusing is, that the display of the desktop mode usually seems to work and does not work only, when one is opening the FAQ-link for the first time. Nevertheless you can reproduce the error, when you start Firefox with "New privat window" and in starting Chrome with "New incognito window" and choosing the FAQ via public.pl or customer.pl.

Another problem or bug, that we have identified since we made the update on OTRS-version 5.0.10 is this:
Numbered lists in FAQ, which were made before by HTML tags (ol, li), are still displayed as lists, however, the preceding numbering is missed now.
What we already have figured out is, that from CommonCSS the following statement arrives:

ol, ul {
list-style: none;
}

If the option on "decimal" is chosen there, the numbering will be shown at "ordered list" (ol), however also with other "unordered lists" (ul). How this looks like, you can see on the attachment FAQNumbering.

Is there a possibility, that this numbered lists will appear in a correct manner again?

Regards
Thomas Lüthi