Problem with Hyper-V vEthernet adapters

On my machine I have to use vmware and hyper-V.
Until recently I used vmware exclusively, but I got a windows sand box, and I installed Hyper-V support in Windows features ON/OFF as well as sanbox and it worked.
I had to uninstall hyper-v in windows 10 to use vmware VMs again, but after installing Hyper-V again, something is changed.
My WSB cannot start and I think this is because all vEtehrnet adapters are disabled (grayed out).
Also powershell command Get-VMSwitch results in generic failure and it is not possible to start Virtual Switch Manager in the Hyper-V manager.

I have tried many things like removing Hyper-V through windows features and powershell and then adding back, but that didn't solve the problem.

Version of Windows is 10.0.19045 Build 19045

I'm not 100% sure that this is the cause, but definitely something to verify:

In order for VMware and Hyper-V to coexist together, you need to have the "Windows Hypervisor Platform" installed. Check to make sure that this is installed by going to Control Panel > Programs and features > Turn Windows features on or off > make sure that Windows Hypervisor Platform is checked.

NOTE: If you install VMware after Hyper-V is already installed, it should offer to automatically install and enable this feature if it is not on. As a result, another way to do this would be to uninstall / reinstall VMware Workstation Pro.