Block work is less than threshold

[SparK-Cruz]

Hi, I've been trying to create a receive block, and no matter how much I raise the threshold the node is always telling me the work is insufficient. And comparing the work with my friend's work server they are very different.

This is the block

{
    "action": "process",
    "json_block": "true",
    "subtype": "receive",
    "block": {
        "type": "state",
        "account": "xrb_3nxd8aiacqxfakhosxempi5fursjzkxiyrt1jwmco91opuz8qb9njiapkecz",
        "previous": "0000000000000000000000000000000000000000000000000000000000000000",
        "representative": "nano_1qnnxd8z3ugpigfzcyuwmix43uocqzatg8ynxi4owyimnkjsqfxtfo184s6d",
        "balance": "100000000000000000000000000",
        "link": "1B425E78F39AC55C95AFCABF76F30B5CC098844D348B9455F5889AF5C594F61D",
        "link_as_account": "xrb_18t4dswh98p7dkctzkozgusipq81m446tf6dkjczd46tyq4sbxixd96h8hfr",
        "work": "00000000008a2686",
        "signature": "9783BB50597B049C1FD6A13D53DCEBA56CAB6F73D15EDF68203F7FE16CAC351574D104C62919A9EFE0B5D742E5BEDECE9458EFE2A69129C2E1BD281EAFE3BF0F"
    }
}

this is the work my friend provided:

{
    "hash": "D3AB3220855FAD449F5CF593B406DDE331FCBB0F63408F26AA9C15B6FE6BA4F4",
    "work": "c10561ca4a74c418",
    "difficulty": "fffffff80bd6da42",
    "multiplier": "1.005814505536319"
}

I noticed the difficulty is higher than base fffffff800000000

Am I doing something wrong?

UPDATE: I've tried changing the difficulty to fffffff900000000 and after 13 minutes got 000000004e099dc6 as work, still fails.

[cedvdb]

Have you resolved this issue ?