Redmine

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attached the redmine version version is this enough to trace the issue ?

we did the following:
1- go to folder /lib/ under the main folder of redmine then to folder / redmine/ then /nested_set/ then we open file named " issue_nested_set.rb" then we go to line #L174
and change rebuild_tree!" to be "rebuild_single_tree!" ( pls see attached screenshot)
2- save file
3- restart redmine
4- check the issue its still in the wrong place
also i want to ask what is the purpose of tags folder we go directly to lib folder

we revert the changes and restart redmine
we tried the first command $ RAILS_ENV=production rails runner 'Issue.rebuild_tree!' but it give us error message (attached screen shot)
we restart redmine and check still have wrong parents
we tried sencond command with the issue ID itself 253921 but it give us error message (attached screen shot)
we restart redmine and check still have wrong parents
pls advise

We executed the new commands but still the same error message
pls check attached screenshots

we execute the 2 command and attached the result
the rebuild tree command executed but it give error message
the rebuild single tree still cannot find it
this is critical issue for us where we build the structure of our products and must have the correct tree at view (its correct at the edit !)

yes we did.
pls see attached screen for the inside code of the file

Please look your source code carefully. rebuild_tree should be no argument.
Please use forum for question.
We don't provide any technical support for specific environment.
I think your issue tree was broken from long ago.
Recent Redmine prevents it.