mul and mis text can be in any or multiple text directions and the label for the language "name" in these cases is not properly isolated from the string. Without using Unicode control characters, we get something like:

[LTR text] (multiple languages) / [RTL text]

(simulated using just LTR text to avoid unintentional confusion)
In these instances, the language label actually shows up in the middle of the string which is undesirable.

With Unicode control characters (POP Isolate pairs around each differing direction portion), we see:

multiple) [LTR text] / [RTL
(languages text]

when the string gets too wide as it often does. This is slightly better but it is also confusing to look at.