Dropdown Calendar is not there - how do get it?

Hello, 

I have read through many forum posts here, and I can't seem to find a way to add a dropdown calendar to my form. 

I have created a dropdown next to it, and that works fine, when opened in 'Preview' or opened in any of my pdf viewers.

When I try to add a calendar using 'Date Field', it just creates a box that you have to type in, and there is no dropdown calendar.

Things I have tried so far from the forum posts:

1) Reverted back to the old Acrobat.

2) Clicked 'More' in 'Prepare Forms', someone suggested there should be an 'Add Date Box ' in there, it sin't there.

3) Tried the 3rd party calendar add-on link someone suggested, it's terrible.

4) Tried it the way I watched a lady on Youtube do it, she clicked 'Prepare Form', clicked 'Add a Date Field' button at the top of the screen opened a window, she clicked close and then there it was straightaway - a dropdown calendar. I followed the exact same steps (I had to revert to older Adobe to get the same screen) and mine just produces a text box.

I'm using Adobe Acrobat Pro (64-Bit), I bought it today, it's version 2023.008.20533

Please see screenshot attached.

Hope someone can help, adding a ddropdown calendar seems like a really simple tool that it would be weird to take out. If it can't add a calendar, I'll probably cancel at the end of the free trail as not having that as a function anymore, which a lot have suggested on the forums, seems insane to me.