That rule you tried to create is not the ideal way to accomplish what you want, even if it had worked, as it would rely upon that other plugin always being (near to) last, wouldn't it? It's not adaptive. Since LOOT is a part of Vortex, the ideal way to manage something that needs to load in a relative position in the load order - as opposed to simply loading after a specific plugin with no other requirements - is to assign it to a LOOT "Group". In the Plugins tab, double-click in the Name column of the plugin that needs to be assigned; this will expose the details pane that is normally hidden (too hidden, IMHO). In that pane you will find a Group field, which is a drop-down list from which you can choose a group. In this instance, you'd want to choose one of the last four; I'll leave you to decide which one based on what you know of its purpose.
LOOT uses a "masterlist" of embedded rules that are an accumulation of what the community knows about the load order relationships of various plugins. Those rules are applied automatically, and Vortex inherits this feature from LOOT. That is how you wound up with cyclical rules: your manually created rule conflicted with the masterlist rule already in place. Any plugins have have rules associated with them, whether masterlist or manually added rules, will have an orange(?) icon in the Dependencies column; you can click on those icons to see what rules exist. You can also review all rules using the Manage Rules button.
Regarding the relationships of LOOT Groups, you can click the Manage Groups button and review (and change) the precedence of the groups. I wouldn't recommend altering the existing ones, but adding new ones could be useful in certain situations.
Also, I quote this from another reply as it seems like it might be useful for you:
There's two efficient ways to create a rule, if that is indeed what you need to do, although assigning in plugin to a Group, as @HadToRegister suggested, is another way of creating a more generalized rule.
To create a specific rule, there is an icon in the Dependencies column in the Plugins tab: you can either left-click it and choose Edit from the little pop-up menu, or you can right-click-and-drag from that icon to the icon of the other plugin to which you need to create the rule.
If you choose Edit, then the icons for all the other plugins turn into checkboxes, and you can check the box of the other plugin with which you need to create the rule. When you check another box, then it creates a Loads After rule for the first one you selected; "loads after" is the only rule direction possible with this method, so the first plugin you choose must be the one you wish to load last of the two. If you hover over a checkbox, it will display a tooltip showing what rule will be created by checking it. Unfortunately there is no feedback when you check a box even though a rule is created, so don't be careless. You can actually create multiple loads-after rules all at once for that same plugin, if that ever proves necessary, by simply checking other boxes. When you're done, click the original plugin again- the one with a check in its box.
If you choose to drag-and-drop from the first plugin to another one, the Manage Rules dialog will open with both the fields already populated and a drop-down rule selector in between them. That selector has two choices you'll use 99% of the time: Loads After and Requires (e.g. "loads before").
The drag-and-drop method is most useful if both the plugins are visible in the same view. The Edit-and-checkboxes method is more useful if you need to scroll the view much to locate the other plugin(s).
You could also open the Manage Rules dialog directly. If you do that, you must populate the plugins fields at the bottom by clicking on each one and scrolling through the list of plugins until you find the correct ones, then click into the rule selector and pick the correct rule "direction".
Edited by VulcanTourist, 26 October 2020 - 04:20 AM.