Error, full text destruction when LT enabled (deepl.com)

Error, full text destruction when LT enabled

Site [translator]: deepl.com

Can you send a text to reproduce this? I cannot reproduce it. Also, I don’t see the LT icon, so are you sure this is caused by LT?

The error occurs unexpectedly and randomly when LT is enabled.
My text contains copyright, so please find other texts in Russian on the Internet (you can use google.ru)
Problem if copy/paste many words 2000+ / 5000

Example:
Test word/sentence:

1547 / 5000 Working

2061 / 5000 Problem