Resolved! On the STWIN SensorTile Wireless Industrial Node, the standard en.fp-sns-datalog1_v1.2.0 firmware behaves differently if using the binary, rather than compiling the code in the STM32Cube IDE.
When I compile the code in the IDE and run it (with the acquisition json file set to activate for 5s, then idle for 10s, and repeat) It activates correctly the first time. However, when coming out of idle the second time, it produces an SD card erro...