Earlier, I was able to make a transfer entry from a current account to an expense account. Now, I am unable to do it, as the expense account does not show up?

Let's run some troubleshooting steps to isolate what causes the issue, studiocasamir.

To start with, open your QuickBooks account on an incognito window. It is the best place to verify any browser-related concerns. You can use these keyboard keys to open one:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Shift + N

If it works, you may go back to a regular browser and clear its cache. This site doesn't store any used cache thus, it helps eliminates browser-related issues.

You can also switch to a different  supported browser like  Google Chrome, Mozilla Firefox, Safari, or Microsoft Edge as alternatives.

I've also shared this reference as your guide when transferring accounts: Transfer funds between accounts.

I'll be around if there's anything that I can help. Keep safe!