Plesk 12.x / Linux :: Amazon Route 53 Extension - Multiple Zone Records

I've run into a problem with my Plesk install with Amazon Route 53. I have the latest extension installed (version 1.2 release 2) on Parallels Plesk v12.0.18_build1200140811.16 os_CentOS 7.

The extension has been working perfectly well for me for months. I was adding new domains to Plesk and discovered that as I was making changes to DNS records that a new zone file was created on Route 53 instead of updating the original one.

I did notice that this started happening when I surpassed the 100 domain limit and seems to only happen on domains created at #101 and on. (in other words, I can edit a domain that was created before I got to domain #100 [ie domain #1] and it does not create a duplicate zone file).

I turned on debug mode for plesk and am seeing the json calls with the correct commands coming through.

Redacted sample of an update of Domain #104

[2015-06-10 16:42:43] INFO [panel] The domain alias <b>mydomain.test</b> was created.
[2015-06-10 16:42:43] DEBUG [util_exec] [5578bd6355bc3] Starting: dnsmng /usr/local/psa/admin/bin/dnsmng '--update' 'mydomain.test'
[2015-06-10 16:42:43] DEBUG [util_exec] [5578bd6355bc3] Finished in 0.06322s, Result: TRUE

[Code] .....

So from what I can see the domain +100 is re-creating the domain whereas domain 1 is not - it's just updating it, even though both json commands show the update statement coming through.