hi there im new here and couldnt find what i was looking for in other threads

im making a led panel with rebel led all 3w

im using 3 x led drivers which produce 20-40 v

i have split the panel into 3 sections to run 3 sets of 10 leds per led driver.
i have 2 of the 3 sets working but the last set is just flickering when i turn it on.
if i switch off the power they flicker for 5 seconds then light up propperly for a split second then turn off.
if i turn the power back on the split second they light up they come on as normal.
just wondering if any1 knows where im going wrong here as the other 2 sets work fine.
ive tried the other led drivers but i get the same flickering problem.
thanks.