Hi Sergei Shibanov,
PFB my answer of your queries.
Is it possible use only first two lines for reproduce issue?
Answer- Yes
Answer - htmlString as read html from file as string and pass it, which I have shared.
Htm…...#=zsTaJcuo=(Stream #=zOL$RYgQ=, LoadOptions #=zLAt2_$U=) at Aspose.Pdf...Document…ctor(Stream input, LoadOptions options) at CI.DataAggregation...