Unable to evaluate the following limit

[teerasak]

I want to find the limit of the piece-wise function as follows:



And here are the limit to find out



The expected answer is -1 and -1/3 respectively.

In the calculator with latest firmware (2020 01 21), it returns both limits to 0 which is not correct.

In the emulator (as in this picture), it provides error message for the first one, but provide the correct answer for the second one.

I verified this with TI Nspire, it provide the correct answer.

could you please help fix this issue.