I have a view that lets you sort by year: hidden link
That has stopped working for years earlier than 2016. If I select 2016 or newer, it works, but not for earlier years.
Here's the filter code:
[wpv-filter-start hide="false"]
[wpv-filter-controls]
<div class="section group">
<div class="col span_1_of_3">
<strong>Filter by Date</strong><br/>
[wpv-control url_param="year" type="select" values=",2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008" display_values="--Year--,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008"] [wpv-control url_param="month" type="select" values=",1,2,3,4,5,6,7,8,9,10,11,12" display_values="--Month--,January,February,March,April,May,June,July,August,September,October,November,December"]
</div>
<div class="col span_2_of_3">
<strong>Search by Keyword</strong><br/>
[wpv-filter-search-box] [wpv-filter-submit name="Submit" type="input"]
</div>
[wpv-filter-reset reset_label="Clear the Filters" class="clearform" type="button"]
</div>
[/wpv-filter-controls]
[wpv-filter-end]
This worked until a few months ago. Any idea what might be wrong?
Thanks