Tony Vargas
Legend
Once again, 5e captures the feel of the classic game!, I only started playing 5e in 2017, several years after the game came out, when I learned that my FLGS (the now sadly-defunct Grapple Games) was running Adventurer's League games on Wednesday and Sundays. (Having felt disappointed after taking an active part in the Next playtest and finding very little of the things I liked from that playtest in the new PHB, I had continued to play Pathfinder 1e).
Anyways, a friend of mine was involved in the AL games and I was suffering from PF burnout, so I made a character and joined. I quickly noted that despite having much more experience than myself at playing 5e, there were several rules not being obeyed.
I asked if this was just common house rules, and was told "no, we play by the books here". "Well, in that case, how is the Cleric casting spells with a weapon and a shield equipped?"
"A Cleric can use a shield as a spellcasting focus." "Yeah, but that only helps if the spell has both Somatic and Material components, see?"
"...oh. That's weird."
"Also, how did the Cleric cast Spirit Guardians and Healing Word in the same turn?"
"Uh, because one is a bonus action cast?"
"Yeah, but right here, it says you can't cast a leveled spell as a bonus action and another leveled spell in the same turn."
"....huh."
And so on, lol. This is nothing against these people; these are easily missed rules and it's sometimes difficult to understand why they exist in the first place (and I know a lot of games simply ignore them- in my current game, nobody asks the Cleric to put their hammer down to cast spells!).