- The BCH That I had sent to my BTC wallet in Coinomi did go through and I was able to send it to another wallet when I tested it with a small transaction. Odd as I didn't know was possible to send different crypto to a BTC wallet.
It's not possible... And you didn't. You sent BCH to a BCH address.
The confusion stems from the fact that when BCH was forked, it's creators deliberately attempted to become "the" Bitcoin, so they did not change the address prefixes (”1” and "3") like most altcoin do...
The end result being that any given "1"-type or "3"-type "Bitcoin" address is also a valid "Bitcoin Cash" address.
However, these addresses exist on a completely different blockchain.
Think of it like having a USD bank account at BankABC with account#12345 and also having a EUR bank account at BankXYZ with account#12345.
Same account# ("address") but different currency at different bank ("network").
- The BTC wallet that I created in Coinomi was supposed to generate on its own, but didn't so had to create my own and then sweep that BTC wallet with my private key again.
Coinomi asks what coin types you want to create wallets for when you first set it up... Unless you explicitly choose BTC, it won't create a BTC wallet with BTC addresses. It does give you the option to add additional coins after you first set it up.
- However since I did not remove my BTC from multibit classic before the sweep it showed empty there and I had no choice but to sweep the wallet into Coinomi and the fee was basically equivalent to the amount of BCH I had just earned from this whole process.
Actually, that's not true. The BTC was still on the MultiBit private keys. You still had several options... Like importing or sweeping those keys into pretty much any wallet that offers that functionality.
Unfortunately, you choose to sweep with Coinomi and paid a premium fee rate of 200 sats/byte which seems a bit of overkill given the current network state
Given you were moving 44,000 bytes worth of tiny inputs, that cost you almost 0.09BTC!
It's highly likely you could probably have paid less than 1/4 of that to move your BTC.