u/Horror-Function-4555

I have had a drip at the expansion bracket between 2 6 meter ( approx) gutter lines.

I thought thay it might be due to failure in the seal in the expansion joints so replaced it and had to insert a small piece of guttering cut out beside the new expansion joint with a joiner piece due to cracking the guttering when removing expansion plate.

The guttering is still dripping when condensation from the roof enters the gutter at night / morning...

Im at a loss any thought on how this can be fixed??