*no other tool using

On other tool using, we are using encryption command in .bat file and this file is being executed from .net code

I am sharing completed info, please look into it, at may I know the cause
gpg: enabled debug flags: lookup
gpg: DBG: keydb_search: 1 search descriptions:
gpg: DBG: keydb_search 0: SUBSTR: 'JPMCBANK_GPG_PROD_2020'
gpg: DBG: keydb_search: searching keybox (resource 0 of 1)
gpg: DBG: keydb_search: searched keybox (resource 0 of 1) => Success
gpg: DBG: finish_lookup: checking key 88BEBD28 (all)(req_usage=1)
gpg: DBG: checking subkey 022E17B7
gpg: DBG: subkey might be fine
gpg: DBG: using key 022E17B7
gpg: using subkey F423A07D022E17B7 instead of primary key 9D09927E88BEBD28
gpg: DBG: keydb_search: 1 search descriptions:
gpg: DBG: keydb_search 0: SUBSTR: 'JPMCBANK_GPG_UAT_2019'
gpg: DBG: keydb_search: searching keybox (resource 0 of 1)
gpg: DBG: keydb_search: 1 search descriptions:
gpg: DBG: keydb_search 0: LONG_KID: 'BFFCAF61B48701FD'
gpg: DBG: keydb_search: searching keybox (resource 0 of 1)
gpg: DBG: keydb_search: searched keybox (resource 0 of 1) => Success
gpg: DBG: finish_lookup: checking key B48701FD (all)(req_usage=0)
gpg: DBG: using key B48701FD
gpg: using pgp trust model
gpg: DBG: keydb_search: searched keybox (resource 0 of 1) => Success
gpg: DBG: finish_lookup: checking key B48701FD (all)(req_usage=2)
gpg: DBG: checking subkey 403048E0
gpg: DBG: usage does not match: want=2 have=1
gpg: DBG: no suitable subkeys found - trying primary
gpg: DBG: primary key usage does not match: want=2 have=5
gpg: DBG: no suitable key found - giving up
gpg: DBG: keydb_search: 1 search descriptions:
gpg: DBG: keydb_search 0: SUBSTR: 'JPMCBANK_GPG_UAT_2019'
gpg: DBG: keydb_search: searching keybox (resource 0 of 1)
gpg: DBG: keydb_search: searched keybox (resource 0 of 1) => EOF
gpg: JPMCBANK_GPG_UAT_2019: skipped: Unusable public key
gpg: E:\New\steps.txt: sign+encrypt failed: Unusable public key
gpg: secmem usage: 1376/32768 bytes in 3 blocks