Redmine

I upgraded from Redmine 4.2.9 to 5.0.4.

Everything seemed to go OK (migrations, etc) except I noticed that 'Home' has disappeared from the top navigation menu.

I can of course go to the front page of my Redmine instance manually and it works, but there's no actual link to that page in the nav anywhere.

Why might this be?

Here's some installation info in case it helps. Server is Ubuntu 20.04.

Environment:
  Redmine version                5.0.4.stable
  Ruby version                   2.7.0-p0 (2019-12-25) [x86_64-linux-gnu]
  Rails version                  6.1.7
  Environment                    production
  Database adapter               Mysql2
  Mailer queue                   ActiveJob::QueueAdapters::AsyncAdapter
  Mailer delivery                smtp
Redmine settings:
  Redmine theme                  Alternate
SCM:
  Subversion                     1.13.0
  Git                            2.25.1
  Filesystem                     
Redmine plugins:
  additionals                    3.0.7
  easy_baseline                  2.0
  easy_gantt                     2.0
  easy_gantt_pro                 2.0
  easy_mindmup                   2.0
  easy_wbs                       2.0
  redmine_agile                  1.6.4
  redmine_budgets                1.0.3
  redmine_checklists             3.1.21
  redmine_cms                    1.2.4
  redmine_contacts               4.3.6
  redmine_contacts_helpdesk      4.2.0
  redmine_contacts_invoices      4.2.6
  redmine_crm_mailchimp          1.0.4
  redmine_drive                  1.1.3
  redmine_finance                2.1.8
  redmine_people                 1.6.2
  redmine_products               2.1.5
  redmine_questions              1.0.3
  redmine_reporter               2.0.2
  redmine_resources              1.0.7
  redmine_zenedit                2.0.3
  redmineup_tags                 2.0.12

Thanks for any assistance!