This is known issue on 4x due to migration 3x to 4x, during migration config drift set two features in /home/vcf/ but never set it back. This will cause the 4.x to 5.x bundle to not display accurately, if the /home/vcf/feature.properties file line ---- 'feature.lcm.store.target.version' is still false.
Resolution
Removing these two lines from the feature.properties file.
SSH to SDDC Manager using vcf account and su to root
Edit the file /home/vcf/feature.properties file and update the these two lines (or comment them out):
Login to the SDDC UI and verify the Updates interface has changed.
Example of expected 5.x Updates interface,
Additional Information
Validate the entries of feature.lcm.store.target.version and feature.vcf.isolated.wlds of file /opt/vmware/vcf/lcm/lcm-app/conf/feature.properties , if these are set to false, update it to be true