BOA installation caching does not refresh
Please make sure you are using latest BOA stable
Make sure you have configured custom Speed Booster TTL properly (INI or code)
Note that default is just 10 seconds, so there is no way it can cause such issues
Disable Purge+Expire modules, unless you are forcing long TTL
Check the docs at: https://omega8.cc/node/108 for working code examples
Make sure it is not some other caching layer (Views?) which adds confusion


I hope this helps.