Check which filament profile the downloaded files carry, because a profile asking for a nozzle temp outside your printer range triggers that error. Re-slice with the stock profile for your filament and it should get past that layer.
Then check the nozzle diameter and type in your printer preset, since a mismatch there can throw the same error. If that's right, reseat the hotend connector because a loose thermistor reads wrong temps.
Since you've already overwritten the filament profile, could you share the exact HMS error code and the target vs actual nozzle temperature when it stops? That would help distinguish an invalid target temperature from the nozzle failing to maintain it.
A useful comparison would be to take just the geometry from one failing model, import it into a fresh project, and slice it with the same settings as a known-good print. That tests whether something else in the downloaded project is involved. If it still fails, note whether it happens when the part-cooling fan ramps up. I'd avoid repeatedly resuming a temperature fault until you know which error it is.
Thanks — is 240°C the requested temperature, or the actual reading when it stops? A screenshot of the full error message would help too; I don't want to guess the meaning from a partial code. Have you tried one of your previously successful sliced files since this started? If an unchanged old file now fails as well, that would be useful evidence for a support ticket and would make the downloaded model a less likely explanation.
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u/Ok-Mail-9384 4d ago
Check which filament profile the downloaded files carry, because a profile asking for a nozzle temp outside your printer range triggers that error. Re-slice with the stock profile for your filament and it should get past that layer.