Possibly some errors occured in Opt-in or later ... ?

https://forum.nem.io/t/symbol-opt-in-when-should-i-expect-to-see-xym-in-my-wallet/29061/25

Was there some XEM limit for Opt-in accounts?   E.g. if the account  had too few XEMs, then for it is not created the XYM-account?