Keynote keeps crashing when using tables.

Hello,

I've posted about this before but didn't receive any answers. I have been experiencing an unreasonable number of crashes while using tables on Keynote. Today alone while working on an important presentation I experienced (and continue to experience as I'm still working on it) such a high number of crashes that I've lost count. Every time I do anything on a table, even something as simple as change the text size, Keynote crashes and I loose all the changes I've made.

I've found several posts on this subject but Apple seems silent and hasn't offered a solution to the problem or an upgrade to Keynote that will fix it. As some have suggested on their posts, I deleted Keynote from my computer and installed it again in case any of its files had become corrupted but the re-installation didn't seem to change anything.

Can anyone offer a solution to this problem? I just purchase a new Mac to create this special presentation and now find Keynote is not working.

Thank you in advance.