When I run a program with more than 1 tool and use offsets the tool number in the “ tool information” “current tool” window does not change after I do the tool change. I have to manually change this to get the correct offset to work. Is this normal?

Also after the last tool is done and the tool is longer than the first tool used it goes to the Z axis of the fist tool height and crashes into the work, any suggestions on what I’m doing wrong ?

running Mach 4 with ESS stepper

If you are using the stock tool change, it will require you to press cycle start to complete the tool change and then it will update the current tool dro.   Do some tests in mdi.
Also, are you turning on the tool height offsets?  G43 H T (T is current tool number)