Hi,
Yes, Glamour is stable since years. Yes, we did have some leak issues that appeared along the way. Last year, we discovered that a memory leak came from Rubric (specifically there was a global variable in it). People saw inspectors laying around, so naturally, the issue was seen as being due to GT. And now there is another one, which is still under investigation. For me, the main issue is not the memory leak, but the fact that we have no tool to reason about them.