Well, you should join Blocknet Slack for further advice on this, but two points immediately jump to mind:
1. It does take a while in general to sync the chain in a new wallet, and transactions and associated tokens in the wallet start appearing in temporal order as it syncs. Couldn't tell for sure if you actually waited to see what happened when you were completely sync'd, but since you are in the new chain which is still now only a few days old then that shouldn't take very long, so I doubt that's your problem (but just thought I should mention it anyway).
2. Reading between the lines, it appears that you do not realize that the directory where you have your exe files is not the target data directory for your wallet, so a wallet.dat file placed there will not be used by the wallet software - most likely this is your problem. The target directory will be by default inside your system user AppData folder if you are in Windows OS. When starting up on a new computer you can let the wallet create a target directory upon first startup (it will prompt you for a path, or you can just let it go to AppData by default). Then shut down the wallet, go to that newly created wallet data directory and either overwrite just the wallet.dat file, or you can also overwrite the entire target directory with one copied from your previous machine. If you only use the wallet.dat, then the chain will have to download and sync again. If you use the whole directory then the blockchain data from previously sync'd wallet is retained and your new installation will sync much faster. (You could also copy in your whole directory before even starting the wallet for the first time, and then just target its path if not in the default path when you start the wallet up.)
Hope that helps.
PS: if you are not that technical, then you may also not know how to find the AppData directory because it is often hidden in Windows. If you go in Explorer to your user directory, and then type \AppData after your name in the path bar, then that directory should appear.
Thanks for the thoughtful reply. Your first comment is probably not the issue, but quite possibly my problem may have something to do with the second comment you made.
The four .exe files and the wallet.data file are in a directory I completely made up. I dragged the wallet.dat file ( from computer 1 now in computer 2) to the Roaming folder in computer 2, and deleted the existing wallet.dat file that was there. But on wallet re-start, I see a new wallet.dat file pop into existence amongst the other files, so there are now 2 wallet.dat files. (When I say "other files" I am talking under BlocknetDX --> Roaming. There are 5 folders there [Backup, Blocks, Chainstate, Database, Log] and around 10 different .dat, .conf, and .log individual files).
But no matter what I do with the wallet.dat file from computer 1, the transactions do not show up on computer 2. In addition, the encryption I put in the wallet in computer 1 doesn't transfer to the wallet in computer 2, and it asks me for a new phrase or password instead of asking for the password I put in computer 1 (I guess maybe it's also part of the wallet.dat file?). Something seems to be lost in translation between computer 1, Dropbox, and computer 2.
If you think you see anything from what I've written, please let me know, otherwise I'll go to slack per recommendation. Thanks.
Edit: One more thing. I checked the db.log file, and the following is written
wallet.dat: unable to flush: No such file or directory
wallet.dat: No such file or directory
wallet.dat: unable to flush: No such file or directory
