Iionly can you try to register and see if you can tell us if there is a mix up?
@Spark: sorry but I'm not too keen on registering an account on any site just for providing support.
When I look on your site I notice that the order of the fields for Display name (in your case Full name) and Username are inverted compared to the default Elgg registration page. I don't know how you got the Display name field to show as "Full name" field. Is it your done by your theme or another plugin? I suspect that maybe the Full name field is actually the Username field while the Username field as shown on your site is the original Display name field. You might want to check this (for example by registering an account without spaces using different input for the two fields: which input appears where?). You might also want to check if the registration with spaces in the Display name field works if you disable your site theme (or whatever plugin creates the full name field).
@spark
@iionly
Nope, no issues. Even with spaces in Display Name there are no problems. This is a theme developed by us, and there are no issues. Are you trying to get people to register in your site?
Rodolfo Hernandez
Arvixe/Elgg Community Liaison
info@elgg.org
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