Late bloomer - migrating from 2.5 to 3.3

I’m not sure if this is relevant:
I tried to create a new rule from the UI, and have been having some difficulty.

Settings>Rules> + icon
chose simple item name/label
choosing item from non-semantic items, found the shower fan

The first time I try this, clicking on the item gets an error page:

Sorry

Requested content not found.

Debug information

* **Url:** /settings/rules/add/module-config/pick-from-model
* **Path:** /settings/rules/add/module-config/pick-from-model
* **Hash:**
* **Params:**
* **Query:**
* **Route:** (.*)

(and nothing in the log to correspond with this)

The second time I try,
I am able to pick the item change, and the action to do.
“When FF_EnsuiteShowerFan changed from OFF to ON
Then Send command ON to FF_EnsuiteToiletFan”
I save the rule, and get a pop-up bottom-left message: “Error while saving rule: bad request”

Log stated:

2022-11-03 13:43:38.150 [WARN ] [utomation.rest.internal.RuleResource] - Creation of the rule is refused: null

I try again, given that it pops me back into the filled rule creation page. The first time it gives me an error as the unique ID is the same as my first attempt. I modify it slightly, and then I get the same “Error while saving rule: bad request” pop-up message.

logs:

2022-11-03 13:46:54.741 [WARN ] [utomation.rest.internal.RuleResource] - Creation of the rule is refused: Cannot add element, because an element with same UID (TestShower01) already exists.

2022-11-03 13:47:02.959 [WARN ] [utomation.rest.internal.RuleResource] - Creation of the rule is refused: null

nothing came up in the Event monitor with these tests.

I’m going to try this: