HI i have 20st x 75pix matrix, using a pix 4 to ocntrol. in HLs all worked , however xl4 jumbled.
1 Checked wiring correct all good.
2 renderall in xl4 v53 - all good
3 changed start position - original top left, no good - other starting corners the same - no good
4 jumbled letters as if lines are synced together.
5 checked univerese pix 4 run 4 x 375 pix, setup for sequential channels- no good
5.1 setup for univerese ie 55-57 = output 1 start ch1
" " " 58-60 = output 2 start ch1
" " " 61-63 = output 3 start ch1
" " " 64-67= output 4 start ch1
Letters stil are jumbled as are other effects - bars, stripes etc
any solutions greatly appreciated !!

+cheers Boof63