VMware has released HotFix 4 for vRealize Automation 7.5.
This is a cumulative bug fix package. That contains fixes for a number of problemes, like the Custom Forms Orchestrator Validation, and hanging UI that I have blogged about earlier.
See the VMware KB here for more details and download: https://kb.vmware.com/s/article/60310
VMware also released Realize Suite Lifecycle Manager 2.0 Update 3, that has many fixes included.
See the VMware KB here for more information: https://kb.vmware.com/s/article/67103