System Information
Operating system: macOS-11.5.2-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro Vega 48 OpenGL Engine ATI Technologies Inc. 4.1 ATI-4.6.20

Blender Version
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-09-10 21:22, hash: rBeab26f13347d
Worked: (newest version of Blender that worked as expected)

Short description of error
[Please fill out a short description of the error here]

Using an exact scale for product, the default object size is greatly reduced from the default range. Upon first usage of Proportional node dragging the Size ring is off the screen and not showing. In the Move dialogue the Proportional Size was 100 x the Edited Object's size. Additionally, the Dialogue just says "Proportional Is" and this dialogue comes up AFTER the first attempt to use it.

The logical thing is to have the Proportional Size programmed to be no larger than half the size of the Edited Object so that it could at least be found and usable. If this is not possible, then at least have the Dialogue Box with Proportional Size available upon selection of Proportional edit selection.

Exact steps for others to reproduce the error
I believe this is explicit enough not to require uploading the sample BLEND file, but am happy to do so. In the screenshot I changed the ProProportional Size ring just enough so it shows on the ritght edge of the working area to give you the nature of the problem. Actually it was not even showing in the greatly zoomed out scene with the default camera and light which I had not changed from initially opening the project.

[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]