Update app link results in page not found

Have just deployed the WVD management tool using ARM template here
https://github.com/Azure/RDS-Templates/tree/master/wvd-templates/wvd-management-ux/deploy and appears to be working fine, however it does show current version of the app as 1.2.2 and shows a message that the update is available i.e. v1.2.0 and provides a link to click for updating it, however the link results in the page not found

here is the link it provides - [https://github.com/Azure/RDS-Templates/tree/wvd-mgmt-ux/wvd-templates/wvd-management-ux/deploy#update-msft-wvd-saas-ux-environment](https://github.com/Azure/RDS-Templates/tree/wvd-mgmt-ux/wvd-templates/wvd-management-ux/deploy#update-msft-wvd-saas-ux-environment)

Is something missing or there is no new update available?

Start with the ARM deployment content under wvd-templates/wvd-management-ux/deploy and inspect how the update link targets the wvd-mgmt-ux branch and update-msft-wvd-saas-ux-environment section. Confirm which version is available and ensure the displayed update link resolves to the corresponding deployment instructions.

Written by the indexing model from the issue text.