CubeIDE 1.9.0 has a heart attack on "loading compatible MCU's" - out of memory / huge delay / non-responsive

So in trying to sort an unrelated problem out, I updated to 1.9.0 and have been having serious trouble with it all morning (I've restarted it about 10 times and counting).

In selecting "List compatible MCU's" it would load maybe 30% then lock up / stop, sometimes show "Running low memory", and eventually crashed with an "Out of memory" error despite the fact my PC has loads of free memory (>16Gb free)

After a fair bit of googling and digging I modified the .ini file (C:\ST\STM32CubeIDE_x.x.x\STM32CubeIDE\stm32cubeide.ini for anyone playing along at home) to increase the defaults by about 4x, which seemed to help a little but it's now sat here thrashing my CPU to death loading a list of 103,000 MCU's which it appears I can do nothing about (EG set filter options) until it's finished.

Seriously ST, this is a mess. Which programmer thought it would be a good idea to load gigabytes of data up front before we can select any options? I'm only trying to move one part number up from the micro I originally selected and so far this thing has taken hours of my time.

Example: current attempt it's ben "loading MCU's..." for half an hour and is up to 79% completed >:(

Edit: Been loading for an hour, now up to 80%... seriously WTF guys?

Edit: Half an hour on from last edit (so maybe 90+ minutes of loading & churning & CPU fan blasting) it's finally loaded but is still unresponsive, I can't select any filters and mousing over the list of 158,976 MCU's just causes it to jump around and go mad. It's currently listing SO-8 and BGA parts as "full compatible" with the LQFP64 device I'm currently using. This is ridiculous.