Simple scripts result in 'nil' logs

[Dirk79]

Try to log vent1, vent2 and vent3 variables. What result can you get?

log(vent1)
log(vent2)
log(vent3)

Are 11/1/22, 11/3/22 and 43/0/22 declared and data type is set?

I have logged this. See screen dump. I do not only have the nil logs with this script, so maybe it had nothing to do with the specific script, but with another issue?