token expired mid betslip

so i was building a combo on a boosted promo, took my time checking stats and by the time i hit submit, i got that annoying “token expired” pop up. honestly can’t tell if this is just a standard timeout thing or if promos are coded with shorter windows on purpose. has anyone else noticed that promos and odds boosts seem to expire way faster, especially if you’re switching between tabs or double checking numbers? just feels sus, since timing out on a normal slip almost never happens for me.

maybe it’s just me being paranoid or overanalyzing again, but do you guys prep picks ahead or just go with gut and hit submit fast to avoid missing out?