Yes I know, and those settings are correct. The settings being changed are within the Windows DNS service itself. This may very well be a server OS issue rather than Plesk, but I thought I would check here first.
Plesk Obsidian for Windows
Windows Server 2019
Plesk Master server, 2x Secondary server.
I have a Reverse DNS Zone transfer setting on the Primary Plesk DNS Server, that keeps getting changed somehow.
No other zones are affected. It doesn't matter what I initially set it to., as it will...