So if this reply appears in the right place, and I think it will, I can confirm that fixing the source URL issue in my webmentions has resolved the problem and I can now successfully post replies to M.b from my blog. Phew! Thanks again!
{% if webmentions.size > 0 %}
{%- if html_proofer_ignore == "all" -%}
{%- assign html_proofer_attr = " data-proofer-ignore" -%}
{%- endif -%}
{% if webmentions.size > 0 %}
-
{% for webmention in webmentions %}
-
{{ webmention.content }}
{% endfor %}
No bookmarks were found.
{% endif %}Likes
-
{% for webmention in webmentions %}
-
{% if webmention.author %} {% capture author_id %} {% if webmention.author.photo %}{% endif %}{% endif %} {% if webmention.author.name %} {% endif %} {% endcapture %} {% if webmention.author.url %} {{ author_id }} {% else %} {{ author_id }} {% endif %}
{% endfor %}
{% if webmentions.size > 0 %}
{%- if html_proofer_ignore == "all" -%}
{%- assign html_proofer_attr = " data-proofer-ignore" -%}
{%- endif -%}
{%- if webmentions.size > 0 -%}
-
{% for webmention in webmentions %}
-
{{ webmention.content }}
{% endfor %}
No links were found.
{% endif %}Replies
-
{% for webmention in webmentions %}
-
{% if webmention.author %} {% capture author_id %} {% if webmention.author.photo %}{% endif %}{% if webmention.content %} {{ webmention.content }} {% else %} {{ webmention.title }} {% endif %}
{% endfor %}
-
{% for webmention in webmentions %}
-
{% if webmention.author %} {% endif %}{% if webmention.content %} {{ webmention.content }} {% else %} {{ webmention.title }} {% endif %}
{% endfor %}
{% if webmentions.size > 0 %}
-
{% for webmention in webmentions %}
-
No reposts were found.
{% endif %}
{% if webmentions.size > 0 %}
{% capture webmention_types %}{{ types | join: ',' }}{% endcapture %}
{{ count }}{% capture webmention_types %}{{ types | join: ',' }}{% endcapture %}
-
{% for webmention in webmentions %}
- {% endfor %}
No RSVPs were found.
{% endif %}
{% if webmentions.size > 0 %}
-
{% for webmention in webmentions %}
-
{% if webmention.author %} {% endif %} {% if webmention.content %} {{ webmention.content }} {% else %} {{ webmention.title }} {% endif %}
{% endfor %}
No webmentions were found.
{% endif %}