Right shift key instead turns on and off caps lock

I have an Acer aspire e5-571 using Windows 10 home.

Somehow my teenager accidentally (or on purpose to drive me crazy) set my right shift key so that it acts as a caps lock toggle, both turning caps lock on and off.
The caps lock button does not do this now.

I've check my sticky keys and none of that access stuff is turned on, and I've now turned off the shortcut so I can't accidentally turn it on.

I've checked my keyboard language and I only have US qwerty available, no other languages that I could accidentally switch it to.

I'm old and I'm used to pressing the shift key to get a capital, but not to lock it on capitals, so this really makes typing a pain!

What do you recommend I try next? Do you think the little darling could have downloaded a remap program for my keyboard? Or is this a simple thing she accidentally turned on?

Thank You in advance?
Jay