Hey, I had the same problem before.
If you see the camera of the arena, it means that the lines are well recorded in the Cae_item, but that the GFX are badly installed. Otherwise you would have The Rock GFX like when you inject a moveset without the Cae_item edited.
Are you sure you have injected or copied and pasted the titantrons directly into : movie > titantron :
- Sunil : ent_0761_0_0, 1 and 2 (3 trons), It is best to create three at a time.
- Samir : ent_0760_0_0, 1 and 2 (3 trons)
Also check the cae_item_p20 in your main folder, to see if it is up-to-date by any chance. Clear the chunck and regen the chunck, and try.
N.B : There was also an update I think to the RAW 2022 arena, used in the entrance creation, which fixes the titantrons that didn't appear on CCModz by @2K Live too : https://www.ccmodz.com/post/raw-22-v3-gfx-arena-retexture-wwe-2k19-by-2klive
Maybe this will fix your problem.