Latest PicBasic Pro version 2.46, very simple code (even with no code at all in microcode studio). Here's a simple example I tried with :

ANSEL = 0

START :
HIGH PORTB.0
PAUSE 1000
LOW PORTB.0
GOTO START

I don't think it's a programming error, more likely a compilator error. I was able to program 16F88 in the past but I format my PC recently and reinstall and now that's what I get.