I had an issue with this yesterday, and perhaps you're referring to
my thread there. It takes a few clicks a lot of times to get the update to actually take, but mine went one step further and asked me to restart twice, until finally I was able to get the latest component package.
If you read that thread, it's mainly speculation from the one user that Avast
could be responsible, and he admits as much. When I asked about
potential Avast and MBAM conflicts a while back, that same person said that the scanners won't cause an issue and then re-iterated in the thread from yesterday that it was specifically the
scanners, and that updates can still be messed with. Again, this was his speculation and he doesn't solely blame Avast. He also mentions Fast Startup and recommends that being disabled, and it's something I think i'll do, but considering I don't just shut down my computer often and have restarted several times over the last few days (including 10 or so hours before that first update attempt yesterday), i'm not sure how much of an issue that was.
Another thread that I posted regarding the updates generally and the number of clicks needed, he suggested that the first click is for updates to definitions, then subsequent clicks would be updates for updates to the program and component version. As you'll see in my most recent thread, it wasn't my experience yesterday. It could have been a weird one-off glitch, or something that's wrong broadly.
So to answer your question: I experience the same thing, I don't know if it's due to Avast. I also use just the Free version that's just the manual, on demand scanner.
Links to MB Forum threads in case people don't want to click the hyperlinks above
https://forums.malwarebytes.com/topic/305107-cant-update-mb-free/https://forums.malwarebytes.com/topic/303284-malwarebytes-free-with-avasthttps://forums.malwarebytes.com/topic/303281-malwarebytes-restarted-to-install-update-but-update-date-was-unchanged/