I consider base coat clear coat inferior to single stage anyway.
This ,depending on brand and line choice. Single stage on non metallics,Base/Clear on heavy metallics/mica based paint. I prefer a good quality single stage urethane,on my personal stuff.. ( Shot PPG's Concept 2000,Dupont Centauri in the past, Currently jamming my Scamp, with older Napa Crossfire,( started as a budget low end Sherwin Williams brand, price has doubled in a decade,good stuff). If already jammed,what can you do? You can complain about it,hope for a respray.. Or live with the combo.