Flowbit warnings with Emerging Threats Rules

Hello All. Suricata newbie here. I am using suricata 7.0.8 in Opnsense 24.7.11. I am getting a lot of warnings such as Warning suricata [100749] – flowbit ‘ET.pdf.in.http’ is checked but not set. Checked in 2017150 and 0 other sigs for a lot of the rules. Is this normal and if not what could be causing this. I would assume all the ET rules I have enabled would be compatible with suricata.