iPad Air LCD glitches out after repair

I’ve recently replaced the digitizer on a first gen iPad Air and now the LCD glitches out. I can only reproduce the glitch after leaving the iPad inactive for 10-15 mins. Upon turning it on after 10-15 mins of inactivity, It glitches out for a few seconds, and then shows an image and works normally.

Heres what i’ve tried:

Disconnecting the LCD and reconnecting

Making sure all of the cables are snug

Resetting the iPad (Holding down power and home button)

Powering off and powering back on