Yes i am using that beta version. With that tool i did import the bip39 seed from my bitcoin.com wallet and there are no tokens showing up. Maybe a bug?
Not sure, what is your SLP address from Electron Cash?
Hit `Receive` in EC and it's the address displayed. Looks like `simpleledger:qz79jauzlhm5yjxluuau4t27aslrjsjh65zy3l970w`. There is also an address converter in EC.