pizza base not cooking intermittently

i’m still waiting for the gas company to come and check my gas pressure they seem to think i need a bigger meter.
meanwhile i’m still having this intermittent problem when suddenly bases come out pale yellow in colour. this evening started about 8.30pm.
very stressful i hope that the problem will be the gas pressure? i am so confused at the moment.
for both ovens having similar problems is causing me great concern.