Malwarebytes Pro can cause issues and when McAfee installs it will balk if it detects even the free version, but I have both the free MBAM and SpywareBlaster installed and have had no problems.
The technician may be saying that because the installer will balk if it detects quite a large array of would-be rival software. MBAM free and SB are not really rivals though as they work in a totally different manner.
If the installer asks for their removal then do so and reinstall them afterwards.
I list some here under 3rd Party Tools halfway down this page: https://community.mcafee.com/docs/DOC-2168
Thanks ExBrit. I'm going to put MBAM and Spywareblaster back on the computer. I think the tech was incorrect in this conflict info, unless something truly was changed in this last build update (doubtful). I'll monitor this thread for a few days and see if anybody else is having any problems, but I just think I got some bad info from the tech.
Ok, good luck.