Figma seems to have BUGs!

I put a line height at 0.5 in a frame that height at 0,then to autolayout with another frame below it,it should next to each other closely with 0 height,and my file was like this before,and today i opened figma,found there are 0.5 height between the line frame and the another frame!!!My file is updating with Figma’s new verision. i guess Figma had a updated yesterday?I am pretty sure that was not happenting before,but today changed!Does anyone has the similar question?

forget the image