When TnT trails are ignited, TnT farther in the back out or nearly out of render will fail to ignite. This is probably intended. However, when going to manually reignite the TnT, it fails to ignite. Placing fire on the TnT or block next to it, without it being ignited. Walking out of render and then back in, as well as exiting the world and reentering, seems to fix it. 

Reproduce by:

1. Place TnT in a line (I did with 4 blocks of air in between). Down passed entity render. (You can still see it)

2. Ignite the first tnt. Then wait.

3. You should walk and see that the chain failed.

4. Now try to ignite the tnt that failed.

5. It shouldn't ignite if the bug is present.

Notes: I notice a bit of lag from this. 

Expected:

I suppose it should remember that it was hit with the prior explosion some how. And upon walking up to it, be ignited and continue the chain of explosions.