Sigh. People who don't like vaccines (not saying you OP) will look for anything and everything to try to discredit them. This is probably one of the first times that all of us are exposed to watching every single step in the process of a vaccine. This is a relatively common thing to happen, and it's really not cause for concern.

https://www.cnbc.com/2020/09/09/dr-fauci-says-pause-on-trial-is-not-uncommon-at-all-after-major-coronavirus-vaccine-trial-placed-on-hold.html

Fauci (an expert in infectious diseases) says that this is totally not uncommon. So, why does everyone have to freak out now?