I've just developed my 2nd roll since 2 years of abstinence.
When I noticed the light streaks I first thought that my changing bag or development tank is not light tight.
But then I saw that the streaks end and the border of the frames.
Camera was a Hasselblad 500C/M. I haven't found problems with the magazine, but it hasn't been used very often yet (~10 rolls).
The problem is only with 2 frames, the other frames look ok.
Look at the first two pictures which have the problem. The next picture is ok again.
I've also included a scan of the whole negative stripe so you can see the borders.
Is it a problem with the magazine?