Volvo d13 cups/injectors issue

[GeezerinaVolvo]

New member here so if I do something wrong plz just tell me and I will amend my ways muy pronto!
Ok so just looking for info if there is a permanent solution to the injector cups issue on the Volvo d13. I don't see a search function so I'm asking here.
Had cups/injectors replaced about 5, 6 mos ago and it happened again! On the facebook Volvo forum I've not found anyone with a long term solution. So could be this is an incurable design flaw. If so I plan on buying a different truck with a Cimmins engine. I've watched many of Rawzes videos on YouTube and like what I see for the most part!!!