National characters in title are not converted to sef url correctly.

[Jimmi08]

Bug Description

This is string: "Ľudia okolo vás - na každom z nás záleží"

In version 2,3,2 result is on live version:
udia_okolo_vas_na_kazdom_z_nas_zalezi
(first letter is missing)
on localhost version
?_udia_okolo_vas_na_kazdom_z_nas_zalezi
No error in console.
No idea why there is difference.

in version 2.3.3 (latest git) nothing is generated and console says:

I don't have clean installation (without plugins) so this could be caused with something else.
but without national characters, sef generation is working

Thanks

[CaMer0n]

@Jimmi08 Can this be closed or are there other characters that cause issues?

[Jimmi08]

Closing, I will reopen it or create new issue, not able to test it now.