Hello,
while I’m happy that 43484 has been fixed (<https://xojo.com/issue/43484>), there is still bug 42044 that shows more or less the same problem (memory not being released when a window is closed) <https://xojo.com/issue/42044>.
Although it is ranked over 300; I still hope I’ll be able to see it squashed in less than a decade (smile!).