The room is too cold and the air currents are causing a different temp in spots on the print causing warping is my guess. I loaded your file and the tags are quite small.
I’m in canada in winter so I understand the issue, it’s -20 outside and about 22 in my living room. You might need a tent setup as well to prevent air temp issues.
I posed a quick setup here if you are in cold temperatures.
IMPORTANT: the A series printers are not quite made for tents from what I’ve been hearing and overheat the boards, you must be careful and monitor to be sure. I have a velcro top hole that is opened in the picture I put to passively allow some air exchange (but no fan inside the tent as that will cause the same warping issues when it blows the air around)
Also as your pieces are quite thin you might want to clean the build plate with soap and water to be sure things stick and see if that helps