We are getting reports on an huge shortage in some instance types in the Amazon Spot market right now. We are checking this ASAP with the Amazon teams to figure out what's the sizing and the affect of this issue.
We have reports on the following instance types in us-east-1
m4.xl, m3.medium, m3.large, m3.xl, c4.large, c4.xl, c4.2xl, c4.4xl, c4.8xl, c3.large, c3.xl, c3.8xl, g2.2xl , cg1, r4.xl, r4.2xl, r4.8xl, r3.xl, r3.4xl
Please contact us over chat at "https://console.spotinst.com" or email "firstname.lastname@example.org" for more information.