The issue occurs only if the Signature is initially rendered in a container with display: none style. If I use visibility: hidden, I don't see a problem.

Real use case in which this is a problem: an accordion where the second pane is not opened.

Reproduction code: https://blazorrepl.telerik.com/QfYeuZPv28LlBmBx56.

Steps to reproduce:

1. Test signinig in the Signature #1 pane - Signature behaves properly.
2. Open the  Signature #2 pane and test signing - the scale is wrong.