Problems with change screen

I have a problem with the change screen functionality. It doesn’t work properly anymore, probably already since 1.3.3. When simulating in the editor everything works fine. However on my esp32 powered display, it doesn’t work most of the time. For most button nothing happens at all. For some buttons, parts of the new screen appear, then it freezes.

Seems to be a typical symthom of memory-allocation issue. Usually setting LV_MEM_CUSTOM to 1 or setting LV_MEM_SIZE to a bigger value in lv_conf.h can prevent the project from these random screen-freezes.