Created attachment 857 [details] JOGLQuadNewt example Each time NewtCanvasAWT is resized, the viewport moves down and to the right and the rendering eventually disappears. It can be reproduced with the attached JOGLQuadNewt example with JOGL 2.4.0 on Ubuntu. No issue with JOGL 2.3.2. Tested on Ubuntu 20.04 with OpenJDK 11.0.12+7 and OpenJDK 17.0.6+10.
Created attachment 858 [details] Screenshot