Not Cracking Passwords With Symbol Followed by Uppercase

[gaminfreak22]

Hello! I'm new to the forum and HashCat. For a cybersecurity course at school we were asked to create and crack hashes to certain passwords. However, I noticed that oclHashcat is not cracking hashes (in md5 and sha1 for sure) with symbols followed by uppercase letters, numbers, or other symbols. Also, it did not crack anything with digits before a symbol. When I noticed this, I was trying different small passwords: $A, *A, *3, a*A, and a*a (I believe these were the combos I tried) all did not crack successfully. However, $a and *a worked fine. I used online MD5 and sha1 hash generators.
Is this a known issue, or am I just doing something wrong? The line I passed was
oclHashcat64.exe -m 100 -a 3 -1 ?a --workload-profile=3 -o Cracked.txt test.txt
Thanks for any feedback!