http://bugs.winehq.org/show_bug.cgi?id=59378 Bug ID: 59378 Summary: Black rectangle box in foreground blocking application window on TaxAct 2025 Product: Wine Version: 11.0 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: trivial Priority: P2 Component: -unknown Assignee: wine-bugs@list.winehq.org Reporter: smeisner777@gmail.com Distribution: --- Created attachment 80331 --> http://bugs.winehq.org/attachment.cgi?id=80331 Screenshot of black rectangle box issue A black rectangle shaped box artifact is in the foreground which blocks a portion of the application window. The box is recognized by the window manager, always on top and cannot be moved or resized. First noticed when distribution updated from 10.20 to 11.0 (Arch linux based Manjaro, XFCE DE). Present on TaxAct 2023 through 2025 versions which use the webview2 API. Present on both of my AMD based Desktop (Ryzen 7 8745HS) and laptop (Ryzen 7 7730U). Also present in KVM/QEMU virtual machine running CachyOS KDE DE. I have performed regression testing which identified commit 1039c8f7f31 as the suspect. Patching dlls/winex11.drv/window.c with either of the two changes below correct the issue. Patch 1: Add SWP_NOACTIVATE as condition to hide window - !(swp_flags & SWP_HIDEWINDOW)) + !(swp_flags & (SWP_HIDEWINDOW|SWP_NOACTIVATE))) Patch 2: Add SWP_DEFERERASE as condition to hide window - !(swp_flags & SWP_HIDEWINDOW)) + !(swp_flags & (SWP_DEFERERASE|SWP_HIDEWINDOW))) -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.