BTT Octopus Pro PT1000 issues

[Sineos]

Try replacing:

[extruder]
...
sensor_type = MAX31865
sensor_pin = PF8
spi_software_sclk_pin = PA5
spi_software_mosi_pin = PA7
spi_software_miso_pin = PA6
...

with

[extruder]
...
sensor_type = MAX31865
sensor_pin = PF8
spi_bus = spi1
...