The easiest way to resolve this is to:
Wallet Settings -> Danger Zone -> Delete
Add wallet -> Hardware wallet
Unable to claim interface means that another browser tab or application is currently using the connection to your hardware wallet device. Closing this program or tab should resolve this, freeing up the connection for Eternl to use.
Either a new epoch has just started, and servers are catching up, or you need to trigger the connection to them manually. Please click here or copy and paste the address:
https://api.eternl.io/mainnet/v1/chain/tip
Ledger currently does not differentiate between transactions spending from SC and spending into SC.
A normal listing of an NFT for instance is spending into as SC.
This action does not need any collateral, so no collateral is present in the transaction itself, but Ledger sees a smart contract address and warns about missing collateral.
So as long as the (script, orange badge) address is on the output side (right) and no script address is on the input side, you can ignore that warning.
“5000” here denotes the maximum size in bytes of a parameter specified in the protocol for the transaction for all assets sent.
For tokens this includes among others Policy ID & name. If you combine too many assets in one input, this size limit may be exceeded.
“Token Fragmentation” in the wallet settings also helps here. It reduces the number of tokens in individual outputs & inputs: