im not rly getting what ur exact problem is. Your functions ALL work when executed ingame? with /function?
Just load and tick functions dont trigger when u enter the world or do /reload?
If thats the case I have encountered that aswell. I dont rly know why it happens, but re-creating the functions (also the minecraft .jsons) [deleting them and making new file] if that doesnt work, try making functions with other names and use them.
Could also be an issue with too many functions running in one tick (altho i doubt thats it)
If the load funciton runs, but tick doesnt, try scheduling tick from load and dont include it in the tick.json
If that doesnt help, no clue what the problem is