Experiencing problem with DBpedia endpoint

 Dear all,

I’m experiencing a problem with the DBpedia Virtuoso endpoint on Windows 10
using MS Edge and Chrome.

I want to execute the following query:

PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>
PREFIX dbpedia_o: <http://dbpedia.org/ontology/>
PREFIX dbpedia: <http://dbpedia.org/resource/>
PREFIX dc: <http://purl.org/dc/terms/>
PREFIX dbc: <http://dbpedia.org/resource/Category:>
SELECT COUNT(*) WHERE {
?y dct:subject ?subject .
OPTIONAL {?y geo:geometry ?geometry}
FILTER(REGEX(?subject, "townland", 'i'))
}

All seems to work fine when using snorql (http://dbpedia.org/snorql/), but
not when I’m using the interface provided by https://dbpedia.org/sparql.
The results are as follows:

- Snorql in Chrome - 1508
- Virtuoso in Chrome - 365
- Snorql in Edge - 1508
- Virtuoso in Edge - 361

It seems that the results using snorql (a JavaScript library) are
consistent, but something weird happens using the Virtuoso’s interface in
Edge and Chrome. The numbers are even different! We were able to recreate
the problem on a fresh install of Windows 10. Funnily enough, we had no
problems using Chrome and MS Explorer on a Windows 8 machine.

Has anyone encountered this before or confirm whether this is also the case
for them? Am I missing something?

Your help would be much appreciated.

With my best regards,
Peru