I confirmed this bug. It shows in Firefox “only”. Of course, it will be fixed ASAP.
{
"Name": "22",
"CreationDate": "2021-1-29",
"Commands": [
{
"Command": "store",
"Target": "123 Hello",
"Value": "!clipboard"
},
{
"Command": "echo",
"Target": "${!clipboard}",
"Value": ""
}
]
}