Thread:Help talk:Eventcalendar format/Assistance Requested: Yellow "No results" Bar

I'm attempting to set up an eventcalendar on a personal wiki and have been spinning my wheels for a couple days. I'm a brand new mediawiki and Semantic / Semantic Result Formats user. Any and all help is very much appreciated.

I'm starting out very simple, and have created a page ("Calendar") with several event subobjects and an "ask:" with "format=eventcalendar". Instead of the expected calendar with events, I get a yellow bar with a blue triangle and the text "No results".

During my testing, and on the same page, I put another ask: with " -Has subobject:: ", This does display all the event subobjects.

What have I done wrong that the eventcalendar ask: doesn't work, but the FULLPAGENAME ask: does? Any ideas, thoughts, or recriminations welcome.

Syntax below...

Versions from Special:Version:


 * MediaWiki: 1.31.1
 * PHP: 7.0.33-0+deb9u1 (apache2handler)
 * MariaDB: 10.1.37-MariaDB-0+deb9u1
 * Semantic MediaWiki: 3.0.0
 * Semantic Result Formats: 3.0.0

I don't think I'm missing anything, but maybe?

Here's the source of the "Calendar" page:



Here's query and it's results (provided by "format=debug" in the eventcalendar "ask:"):

SELECT DISTINCT t0.smw_id AS id, t0.smw_title AS t, t0.smw_namespace AS ns, t0.smw_iw AS iw, t0.smw_subobject AS so, t0.smw_sortkey AS sortkey, t0.smw_sort FROM `wiki_smw_object_ids` AS t0 INNER JOIN (`wiki_smw_di_wikipage` AS t2 INNER JOIN  `wiki_smw_di_wikipage` AS t5 ON t2.s_id=t5.s_id) ON t0.smw_id=t2.s_id WHERE (t2.p_id='575'   AND (t5.p_id='579')  ) AND t0.smw_iw!=':smw' AND t0.smw_iw!=':smw-delete' AND t0.smw_iw!=':smw-redi' ORDER BY t0.smw_sort ASC LIMIT 505 OFFSET 0 +-+---+++---+++ +-+---+++---+++ +-+---+++---+++
 * id | t         | ns | iw | so                                | sortkey                                    | smw_sort                                   |
 * 743 | Calendar |  0 |    | _321fe513e5f3995e02eda27a1997a16d | Calendar# 321fe513e5f3995e02eda27a1997a16d | Calendar# 321fe513e5f3995e02eda27a1997a16d |
 * 744 | Calendar |  0 |    | _4f2367d5bb752e4ead158b9fddc24962 | Calendar# 4f2367d5bb752e4ead158b9fddc24962 | Calendar# 4f2367d5bb752e4ead158b9fddc24962 |
 * 745 | Calendar |  0 |    | _bcbb94b2d13ce4fe5eb9d34ed8a19feb | Calendar# bcbb94b2d13ce4fe5eb9d34ed8a19feb | Calendar# bcbb94b2d13ce4fe5eb9d34ed8a19feb |
 * 741 | Calendar |  0 |    | _bfe0e2d5aa3b97d409c1872b2dc84076 | Calendar# bfe0e2d5aa3b97d409c1872b2dc84076 | Calendar# bfe0e2d5aa3b97d409c1872b2dc84076 |
 * 742 | Calendar |  0 |    | _f628fd6b030235d58c51d11b282938c7 | Calendar# f628fd6b030235d58c51d11b282938c7 | Calendar# f628fd6b030235d58c51d11b282938c7 |