Filament jam after/during filament change

Hi!
My ratrig functioned just fine 130 h but then I got problems with Rapido UHF. Now I have new Rapido UHF and it worked fine for few prints. But now when I used filament unload macro Rapido clogged. If I measured the depth of clog correctly it is at heatsink's thinner part. Any ideas what could be cause of this? I am getting super tired of constantly disasembling EVA and troubleshooting problems with Rapido...

I have like zero problems with my other printer´s Volcano-hotend...
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