The setup looks okay but the soil looks a little dry and loose. Is this what you used in the smaller container? Was the soil in the small container the same regarding moisture and looseness?
You said...."But she bypasses the container and goes on to the cage floor"...maybe she doesn't find the container to be suitable?
The roaming is a sign that she is looking for a place to lay the eggs.
You said..."Did I mess it up by switching the container while she was trying to dig?"...if the soil is the same it may just be that she's adjusting...but I have had the odd female that wouldn't lay anywhere but in the small container that was in her cage.
You said..."Thanks for all your help, This is my first time doing this and I just want to do it correctly without disrupting or harming her"...you're welcome for the information! I understand exactly what you are going through with it being her first time! Hard on the nerves, isn't it??!!
Keep us up to date please!