The SEC has reportedly raised questions about whether Solana (CRYPTO: SOL) should be classified as a security, potentially leading to a halt in filings related to its exchange-traded funds. What Happened: The SEC held discussions with ETF applicants and communicated concerns over Solana’s status as a security, as reported by The Block on Monday. After these discussions, the SEC and exchange operator Cboe Global Markets Inc. (BATS:CBOE) decided not to submit the 19b-4 forms to the Federal Register, which would have started the approval process. This action prevents the SEC from being pressured …