WebPositive text selection freaks out with specific page

[grexe]

When browsing a real estate search result, e.g.: ​https://immobilien.derstandard.at/detail/14722978/ (might be offline already, so I'll attach it here, too).

Selecting underlined text in the description ("Beschreibung") behaves in a strange way, where the selection "overtakes" the pointer and actually goes further than the selection point.

Copying does not really work well since it only copies a part of the text, missing the remainder.

[grexe]

apartment post

[grexe]

the issue in action

[madmax]

Not only the underlined text, you can also see it in other places, like the "short description" (TOLL mit 2 großen Zimmern in klassischem Altbau unbefristet) at the beginning.

Notice it's the blue selection "rectangle" that is wrong. The inverted text matches the pointer, and that's what is copied.