Issues with "pattern" tool

Hi,

I’m facing issues with the “pattern” tool. I cannot find out what triggers the issue, but it always triggers after some time when using the tool.

The tool window disappears and the preview of the pattern stays in the scene and I cannot use it.

The only solution i’ve found is to restart VC and then it works for a random amount of time (often quite short) before bugging out again.

Below is a screenshot of the output when the error occurs:

Anyone has a solution or know why this is happening?