New members appearing 3 times in Member list since upgrade to 4.7.10

[wimg]

Since the upgrade we did, going from ICS 4.6.8 to 4.6.10 and then 4.7.10, on May 15, we noticed that new registrations appear 3 times in the Member list, and upon checking the database, the same is actually true for the core_members table itself.

IOW, since the upgrade, every new member registration creates 3 new members with exactly the same data.

Any idea what is going on here?

Thank you in advance.

Kind regards, Wim

Edited May 21 by wimg

[Marc Stridgen]

First of all, disable all 3rd party items and test this, as its very likely this is being caused by a 3rd party item  there

[wimg]

I will do so. I never had this problem in the past, however.

I also noticed in the mean time, that there are now 2 'Standard' methods under Login & Registration, aklthough we have only a single one activated, essentially the old one.

I'll report back on any findings.