Corps not buying supplies (Little Upsilon)

Since about 6 game months ago, all of a sudden, my country corps have been comming up with a shortage in supplies.

I had my buy stratagies varying. Most were at 91-5% of market with an increase the next month to put them over the 100% of market mark.

4 months ago I changed to Best Price. Still shortages.

2 months ago, I changed to 102% + about 10% the next month. Still short.

Please help.

I recently had an earthquake, I don't know if that changes anything.

All of the private corps in the country are fine, including ones that had the exact same buying strategies for inputs.

Check the settings for corporations, on the settings page.
It should show automatic purchasing.

not only for new corporations but also for existing ones.

I changed settings on all corps to buy at 112% of market, and up 10% a month.

Ironically, the only corp up and running, is the new one, which I have set at buying at Best Price (as with all my new corps).

It hasn't fixed the problem in one month, but I will check in one more, to see if at least some are back on track.

Why would corps all of a sudden start not offering stock on the market??

i have also had problems, but it is because the corps are not placing materials on market...this is with the automatic feature of reserving/placing on market feature enabled...i know its not just me because a ceo corp that i know is never adjusted had ALL its product as not listed for sale...also material that should be plentiful such as steel, has to be ordered on immediate basis...more expensive!!!