Re: PIC16LF18344, MPASMX V5.83, BANKSEL TRISA does not change the BANK
Provided BANKSEL xxx is a valid mnemo, you're requesting to select bank 0x8A when givin TRISA as the argument :(
I'd suggest to either use C or thoroughly read the MPASM user manual to get some basic understanding of what you're trying to achieve.
(The seemingly similar operations on PORTA/B/C do not throw an error because these registers are mapped to nearly every single bank.)
PEBKAC / EBKAC / POBCAK / PICNIC (eventually see en.wikipedia.org)