With the new 6.3 update, every weapon tootltip (including modded weapons) shows 2 Attack Range descriptions. One with a base value of 3 and another (i suppose from the Better Combat mod) that changes between weapons types. This didnt happened in 6.2.1, where only the second one was shown.

6.2.1

6.3

Due to BC's unwillingness to support the Forge Attack Range attribute, I have elected to not provide any support for BC-related issues. See ZsoltMolnarrr/BetterCombat#244 and ZsoltMolnarrr/BetterCombat#266

To give more explanation:
You are seeing the attack range attribute from forge itself which every mod uses (if they use attack range)
And a new attack range attribute solely from Better Combat which breaks the forge attack range attribute (and therefor every mod which uses it)