yep sir its normal but to go back at level 10 when you removed the custom weapon but it supposed to automatically back in level 15 after you wear the custom weapon again like this
Nothing to worry about if Level 10 and Level 15 has the same damage.
yup sir it has a same damage i guess for them it might look bug because it not level 15
Just tell to them that damage will not change, it just a minor bug, Skill Points will not affected and deducted.
I encountered this and i make it until level 100 and nothings happened, it will turn back to max level.
uhmm do you think if i change my client it will fix too because most of people telling me that 2014 client it has alot of bug