No power to the front drive shaft in 4wd

Having a hard time diagnosing issues related to my 4x4. Both the front axle actuator and encoder motor on side of transfer case have been replaced and as far as I can tell my listening to them are functioning. I’ve got the electronic buttons for 4 wheel drive and they appear to be working as they should. When I put the truck into 4 hi it sounds like it engages but the front two wheels have to power to them. Same thing happens in 4 low. Is there maybe something I could check on the transfer case itself? Any helps appreciated.