This doesn't just happen on its own, or after a certain amount of time. This only happens if you holster your weapons while reloading, after using a redeploy balloon, or using a zipline. Could be wrong on that last one, but I know for a fact the first two are correct. It's not something that just happens after your guns have been holstered for a certain amount of time.
@SixthOTDLike Dusk said, this only happends if you ‘cancel out’ the full reload animation. This can be due to you performing another action like ziplining (either up a baloon or a normal one), equipping a throwable, climbing etc. So wait for the full animation before doing something else that requires 2 hands basically.
The other one is when your done flying after using a jumpstation. This usually makes you have to ‘*’ (okay so when reading I saw I got the * cause I said cô-ck... but in this case thats the only word to use XD) your guns.
These are the only ways you don’t have an operational weapon even if there are enough bullets in the chamber. No such thing as time that will make you have to reload in Apex
