Incorrectly render latin symbols or something

[atwiriye]

Hello! Im using asciidoctor official docker image (latest) and get some inline render issue:

asciidoctor -r asciidoctor-mathematical -a mathematical-format=svg -a mathematical-inline=true -r asciidoctor-diagram $ADOC_DIR/index.adoc -o $WWW_DIR/index.html -a imagesoutdir=$WWW_DIR

While converting to PDF format, everything is processed correctly:

asciidoctor-pdf -r asciidoctor-mathematical -a mathematical-format=svg -r asciidoctor-diagram $ADOC_DIR/index.adoc -o $PDF_DIR/index.pdf

ASCII code:

Can anyone suggest something to try and fix this?