Switch back to previously used tool does not work - APh 2.1 on Win 10

[cgidesign]

APh on Win 10.

When hitting a shortcut of a tool a second time, the previously used tool should become active again.

E.g.

1. Use the paint brush tool
2. Draw something
3. Hit E for eraser tool
4. Erase
5. Hit E again to switch back to the paint brush tool

This is not working.

I tried it with use shift key to cycle tool groups in preferences on and off.

But it works with the color picker tool.

E.g.

1. Use the paint brush tool
2. Draw something
3. Hit I for color picker tool
4. Pick a color
5. Hit I again to switch back to the paint brush tool

I assume it is a bug, that it works for color picker but not for eraser ?

[cgidesign]

Support has added this to the "check if it is a bug list".