How to get CMSIS RTOS V2 Timer and normal thread to work together?

[DLim.16]

Hi,

I am using the STM32F405RG MCU, STM32CubeIDE, and CMSIS RTOS V2. I'm working through some RTOS examples, and discovered that I cannot get the timer callback function and the normal thread to work together. The individual function/thread works fine when you comment one out and run the other one. I've changed the thread priority, which didn't work either.

Any idea how I can troubleshoot this? I have attached my project for your reference.

Also, are there any CMSIS RTOS V2 based examples on STM32CUBE IDE?

Thanks.