Widgets Expression from items are always { "state": "-" }

[JustinG]

There are a couple of similar possibilities here. See:

Item status not showing in detail of item

Which java are you currently using? OpenJDK has some known issues and Zulu is the main recommendation. I don’t know if this is one of the possibly issues, but it’s worth checking. Other possible things to test: Have you defined other default standalone widgets for other item types? It also seems possible that the UI is having some sort of trouble with the stream. If there’s an error in one of those widgets it may be interfering with the UI’s ability to render the item page in general? Ha…

and

Item values not displayed in pages

Check this thread: [SOLVED] REST API SSE streams not working (WAS: Items on Main UI not showing states on cards) - #14 by Marfi there is (was?) a problem with certain antivirus software suites that block some of the communication which lead to the same behavior as you describe.