Hi,
This bug has been fixed since 8.1.11.
https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410/158
Added textStyle prop to the Label Component. It allows for text overflow ellipsis. To display ellipsis, set props.textStyle overflow: hidden, whiteSpace: nowrap, textOverflow: ellipsis.
Hope you will find this helpful.
Kind regards.