4L60E Question... Keeps Blowing Fuses?

[Stg1Regal]

It is in my sons 95 Chevy Fullsize daily driver truck. 4L60E

It keeps blowing the trans Fuse?

As he keeps telling me when started cold and then driven ... no matter how far it does fine with no issues.

But if he has to shut it off for a short length of time, grabbing a burger or in a store, then restarts and takes off, he notes there is no first gear and then finds there is no 4th or overdrive.

His cousin and him finally figured out it was a blown fuse. Replaced it. it worked fine.... till the restart... so he carries fuses with him or if it just a short jaunt deals with no 1st.

Just started doing this about a week ago, any ideas?