HTML renders with Hugo. This is not a bug. And the new Github issue that you opened is redundant.
There is something wrong with your project.
But without sharing your test website I cannot help you and neither can others.
And I’ve already said the above like 5 posts ago.
And shared with you the forum rules regarding requesting help in that other thread you began…
But it seems like you don’t seem to care.
So I am closing this thread, because this is getting annoying.
If anyone of the other moderators feel that I’m harsh they can re-open this thread.