Hi Vladimir, so what's probably happening there is related to UI controls showing 2 decimal places of accuracy. The initial default for the Rebuild command tolerance is 0.01 which should display ok since it's only 2 decimal places. But if you type in something with more decimal places than that like 0.001 for example, then that will be the new default for any more runs of the command during this same modeling session but when that gets rounded to 2 decimal places for display it will show 0 . V3 should behave the same way.

I've been meaning to tune this up for some time, maybe one way it can work is if you enter in a value with more decimal places than the current display setting it should give more decimal places on that particular control so you won't see a rounded display value.

For the moment you can also bump up the default display precision under Options > General > Decimal display - set it to 1.000 with 3 zeros showing.

I'll try to get this tuned up for the next beta.

- Michael