Chartboost interstitial acting weird

Hey everyone, just launched our new mobile game, and honestly, the initial traction has been super exciting! It's always a thrill to see players enjoying something you've poured so much into. But, as with all good things, there's a little fly in the ointment, and in this case, it's Chartboost being a bit of a diva when it comes to our interstitial ads. The problem is, these interstitial ads are behaving erratically. They're either playing hard to get and not showing up consistently, or they're just crashing the party at completely unexpected times. For instance, after a user finishes a level, it's a total toss-up if an ad even appears, which is frustrating because that's prime monetization real estate. Even worse, sometimes an ad will just pop up mid-gameplay, completely ruining the user experience and probably making players want to throw their phones across the room. We definitely don't want that! Of course, we've gone through the usual troubleshooting steps. We double-checked the Chartboost SDK integration, making sure we're on the latest version and that all the necessary manifest entries and permissions are correctly set up. We've meticulously verified all our Chartboost.showInterstitial() calls, ensuring they're placed at the intended points in our game flow – like after level completion or right before the next level loads. I've also spent what feels like an eternity scrutinizing the Chartboost dashboard for any campaign setup issues, checking geo-targeting, frequency caps, and confirming all our campaigns are actually active. We've tested this on a whole menagerie of Android and iOS devices, across various OS versions, thinking maybe it was a device-specific glitch. I've even pored over Chartboost's official documentation and scoured community forums, but I just can't seem to find a direct solution for this specific inconsistency. Just for kicks, we even experimented with different placement IDs to see if it was some kind of cached issue, but no dice. What we're looking for is simple: our interstitial ads should reliably display at precise, predefined moments in the game – think level complete screens, game over sequences, or clean menu transitions. That's the dream, right? Instead, we're stuck with inconsistent display, often delayed, sometimes completely absent, and on occasion, appearing at entirely inappropriate times. It's like Chartboost has its own internal clock that doesn't quite sync with ours. So, I'm reaching out to you wise folks: is there a common, subtle timing issue or a specific Chartboost interstitial lifecycle callback that I might be completely mismanaging, leading to such unreliable ad display? How on earth can I ensure these interstitial ads fire consistently and at the exact moments I intend without alienating our players? Anyone faced this kind of intermittent ad display with Chartboost before? Any secret incantations or hidden settings I'm missing?