[@codestars Participant 5 years, 8 months ago]

I can’t edit my previous post so here is another update.
Using bbp_get_reply_position_raw() instead of bbp_get_reply_position() works better for me.
In this case it’s better to use bbp_get_replies_per_page() instead of bbp_get_topics_per_page().
And finally, remove the line with $position and just use $position_raw, because it already returns an integer.