No dropdown option in creating the Content

I can confirm the issue. Have the same problem on my site? Any idea how to solve this?

So i am not knowledged enough to do a full debug, but i think the problem starts in shs.module in the shs_field_views_data_alter() where the handler for every taxonomy_term_reference and entityreference (for taxonomy_term) gets replaced. I dont know how to resolve this best. But now no other module could alter the handler, or am i wrong?
I think it should be ajustable within the ui if this handler should be used or not.

In my case i just uncomment the replacement part, because i dont use the handler. I only need the hierarchical select field.

It's Line #169, but this could vary a little bit depending of the module version you are using. If have just commented it out.
But again, if you do this you could not use the shs views filter, only the entity reference view filter will work. In my case i dont use the shs filter, i need the hierarchy only on the node add form.

I was using SHS without any issues earlier, I have unchecked, uninstalled and deleted the module from the server. I tried reinstalling it using the latest available version. It seems to give troubles while creating new content. I do not see the dropdown of the terms available. It just displays the label but not terms.

I could not find anywhere how to manually uninstall the module. If you could provide the tables/fields that need to be deleted in this regard, even that would be helpful.

Screenshot attached.

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