Barry,
We did some more testing to try to narrow the problem down. On a separate test site, we reverted back to ECP 1.3.3 in conjunction with WPML 2.6.0. Everything works as expected; no 404 errors to be found. The 404 issues seem to be linked to something happening under the skin in ECP 2.0.
We’re wondering if you’d be able to give us some direction as to the different components that changed in the 2.0 update to ECP, specifically in regards to the previously mentioned buttons and permalink handling? We’re looking to have our developer take a look at it and want to give him as good of a starting point as possible.
Thanks,
B.