When Orion is selected as the default browser, clicking on a link in another app does not open a page in Orion as expected. Instead, a white bar with a curved left edge is displayed. This occurs in Preview, the Hey email app, and Word, so it appears to be universal.
The bug occurs only when the page being linked to is a web page; links to pdfs work fine. When Safari is selected as the default browser, the bug disappears, and re-appears when Orion is re-selected.
The only extension installed is 1password; disabling it does not remove the bug.
The bug only happens when Orion is currently open. If Orion is closed, and a linked is clicked, Orion will be opened and the link opened, but subsequent links will not work.

Version 0.99.130-beta (WebKit 621.1.2.111.4)
Build date Dec 11 2024
MacBook Pro (macOS Sequoia 15.1.1 build 24B91)
The link being clicked on is expected to open a new tab in Orion.
0.99.130-bet
Sequoia (15)