syslcktab sysmaster select returning ISAM 111 not

Since upgrading to 9.4 on HP I have been noticing that at some point all selects to syslcktab start returning 244: could not do a physical-order read to fetch the next row 111: ISAM error: no record found As syslocks is a view on this table that also is broken at this point. Bouncing the instance clear it for a while but after some activity this table disappears again. Oddly select from systables where tabname = "syslcktab" works and returns a partnum and tabid It does not seem to be corrupting anything other than breaking my monitoring and debugging tools that run selects to this table. Other odd thing is onstat -k seems to still work. I have openned a PMR but was curious as to if anyone else has seen this and has more information. Thanks in advance. Debbie Butler