**System Information**
Operating system: MacOS 10.14.5
Graphics card: Intel UHD Graphics 630 1536 MB
**Blender Version**
Broken: 2.91 rBd8585e184aef90f80d1721c2c89eaf303c67e309
Grab a texture file of 10-20 MB size.
Put it in "~/Library/Application Support/Blender/2.91/datafiles/studiolights/world". Duplicate the texture file around 10 times.
Open Blender, open preferences, lights tab.
See memory increase.
Close window, memory not freed.
{F8840365}