In Pokemon scarlet I have taken all the stakes required for ting-lu yet it is still requiring me to take out one more stake. I have also gone back to all the locations for the stakes so if you could please specify the locations and/or tell me what has happened that would be very help full.
This site here has Ting-Lu's shrine and stake locations.
Ting-Lu's shrine.
The stake locations.
To clarify, Ting-Lu's shrine, the Groundblight Shrine, is in the middle of the rock at Socarrat Trail on the side facing Casseroya Lake. The stakes for Ting-Lu's shrine have a green/yellow glow and there are 8 of these stakes.
It is very likely that you've simply missed a stake, pulled stakes for a different legendary, or visited a different shrine rather than there being anything wrong with your game. Make sure you triple check the locations and look up a video guide if you have too. Once you have all the stakes, you should hear a mysterious cry, the chains should all be gone, and you should be able to interact with the shrine with the A button and eventually start the battle.
Hope this helped!