Redmine

I'm helping to convert a customer from old redmine version 2.5.3 to 4.2.4

They have a custom spreadsheet with VBA/Macros making updates to Issues in Redmine via REST API and issues.xml call. The spreadsheet has multiple issue records in it that need to be updated from status "new" to status "part pulled"

When the routine runs to update the first issue record I see the query come into redmine in the production.log as seen below. Redmine responds with code "204 no content". This query works fine in the old version of redmine but not in the new version. Need some help here. I blanked out the key for security purposes.

The record status is actually successfully updated in redmine oddly enough for the first issue record in the list. so maybe this is just a simple return code bug? The spreadsheet VBA/Macro gets the bad return code and bombs out. The remaining records in the spreadsheet don't get updated in Redmine then. I can provide the spreadsheet info if necessary.

There are some custom fields in this deployment but not a ton.

Started PUT "/issues/18610.xml?key=##########################" for 65.28.190.233 at 2022-07-12 17:48:55 -0400
Processing by IssuesController#update as XML
  Parameters: {"issue"=>{"status_id"=>"11", "description"=>nil, "custom_fields"=>[{"id"=>"2", "value"=>"False"}, {"id"=>"3", "value"=>nil}, {"id"=>"4", "value"=>nil}, {"id"=>"5", "value"=>nil}, {"id"=>"6", "value"=>nil}, {"id"=>"9", "value"=>nil}, {"id"=>"10", "value"=>nil}]}, "key"=>"################################", "id"=>"18610"}
  Current user: Michael (id=4)
Completed 204 No Content in 123ms (ActiveRecord: 38.8ms)

Environment:
  Redmine version                4.2.4.stable.21431
  Ruby version                   2.7.2-p137 (2020-10-01) [x86_64-linux]
  Rails version                  5.2.6.2
  Environment                    production
  Database adapter               Mysql2
  Mailer queue                   ActiveJob::QueueAdapters::AsyncAdapter
  Mailer delivery                smtp
SCM:
  Subversion                     1.13.0
  Git                            2.25.1
  Filesystem                     
Redmine plugins:
  redmine_banner                 0.3.4
  redmine_close_button           0.0.8
  redmine_contacts               4.3.4
  redmine_dmsf                   2.4.11
  redmine_wktime                 4.5
  view_customize                 3.0.0