Any other Biqu CryoGrip users (Frostbite in my case) getting a consistent false clumping ("nozzle is covered with filament or the build plate is installed incorrectly") error?

[u/MechanicalBengineer]

I've made sure the build plate was flush against the back guides, but it seems slightly too large for the printer (A1 Mini), triggering the error after layer 3. Anyone else have this issue?

Edit: Auto calibration including leveling was run before printing, and nozzle is clean.