What version of Go are you using (go version)?

1.15.6

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/gohryt/.cache/go-build"
GOENV="/home/gohryt/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/gohryt/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/gohryt/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib64/golang"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib64/golang/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="x86_64-solus-linux-gcc"
CXX="x86_64-solus-linux-g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build993101165=/tmp/go-build -gno-record-gcc-switches"

What did you do?

PropertiesStruct struct {
BasedOn string
Api float64
ApiId string
ClientId string
ClientSecret string
DefaultPage string
}

func (p PropertiesStruct) ...() {
...
gjson.FromFile(Core.Application.Directory+"/Properties", &p, &Standard)
...
}

func FromFile(filePath string, target interface{}, errorChannel *chan error) {
file, err := os.OpenFile(filePath, os.O_RDWR|os.O_CREATE, 0777)
if err != nil {
*errorChannel <- err
}
data, err := ioutil.ReadAll(file)
if err != nil {
*errorChannel <- err
}
err = json.Unmarshal(data, target)
if err != nil {
*errorChannel <- err
}
file.Close()
}

What did you expect to see?

json decoded to caller (p)

What did you see instead?

When json.Unmarshal works it freezes but no crash.
I tried to set `json:"Smthng"` tags for struct members with same names as struct member names and it was as at start.
Then i changed json tag for apiid and clientid to `json:"ApiIP"` and `json:"ClientID"` and it decodes json and works "correctly".