ESP-S2 RainMaker and Deep Sleep modes

[Sheepling]

Hello all,
I am currently working on a project where the esp32 works like an adaptive sensors, sensing data in deep-sleep and uploading data through the RainMaker in active mode at 4 second intervals.

I'm having an issue where upon entering deep-sleep the ulp timer cannot wake-up the main processor despite the algorithm working before adding the RainMaker components to the code. Has anyone had this issue or other similar issues when combining these 2 components of ESP? Any advice would be much appreciated, thanks.